WO2016121428A1

WO2016121428A1 - Terminal device, base station device, communication method, and integrated circuit

Info

Publication number: WO2016121428A1
Application number: PCT/JP2016/050209
Authority: WO
Inventors: 立志相羽; 翔一鈴木; 一成横枕; 高橋　宏樹
Original assignee: シャープ株式会社
Priority date: 2015-01-28
Filing date: 2016-01-06
Publication date: 2016-08-04
Also published as: CN107409321A; US20180020430A1; EP3253108A4; EP3253108A1

Abstract

The purpose of the present invention is to efficiently transmit uplink control information. This terminal device is provided with a transmission unit which performs an aperiodic CSI report on the basis of first information and the value of a 2-bit CSI request field, and performs an aperiodic CSI report on the basis of second information and the value of a 3-bit CSI request field. In cases when more than one but not more than 5 downlink cells are set, and downlink control information is mapped in a UE-specific search space, the 2-bit CSI request field is included in the downlink control information. In cases when more than 5 downlink cells are set, and the downlink control information is mapped in the UE-specific search space, the 3-bit CSI request field is included in the downlink control information.

Description

TERMINAL DEVICE, BASE STATION DEVICE, COMMUNICATION METHOD, AND INTEGRATED CIRCUIT

The present invention relates to a terminal device, a base station device, a communication method, and an integrated circuit.
This application claims priority based on Japanese Patent Application No. 2015-013824 filed in Japan on January 28, 2015 and Japanese Patent Application No. 2015-205227 filed in Japan on October 19, 2015. Is incorporated herein by reference.

The wireless access method and wireless network for cellular mobile communications (hereinafter referred to as “Long Term Evolution (LTE)” or “Evolved Universal Terrestrial Radio Access: EUTRA”) is a third generation partnership project (3rd Generation Partnership Project: 3GPP (Non-patent document 1, Non-patent document 2, Non-patent document 3, Non-patent document 4, and Non-patent document 5). In LTE, a base station apparatus is also called eNodeB (evolvedvolveNodeB), and a terminal device is also called UE (UserＵＥEquipment). LTE is a cellular communication system in which a plurality of areas covered by a base station apparatus are arranged in a cell shape. Here, a single base station apparatus may manage a plurality of cells.

LTE supports Time Division Duplex (TDD). LTE employing the TDD scheme is also referred to as TD-LTE or LTE TDD. In TDD, uplink signals and downlink signals are time division multiplexed. Further, LTE corresponds to Frequency Division Duplex (FDD).

In 3GPP, carrier aggregation that allows transmission and / or reception at the same time in a serving cell (component carrier) with up to five terminal devices is specified.

Further, in 3GPP, it has been studied to simultaneously transmit and / or receive in a serving cell (component carrier) in which the terminal device exceeds five (Non-patent Document 1). Furthermore, it has been studied that the terminal device performs transmission on the physical uplink control channel in the secondary cell that is a serving cell other than the primary cell (Non-Patent Document 6).

However, in the wireless communication system as described above, a specific method has not been sufficiently studied for processing when uplink control information is transmitted.

The present invention has been made in view of the above points, and an object thereof is to provide a terminal device, a base station device, a communication method, and an integrated circuit capable of efficiently transmitting uplink control information. With the goal.

(1) In order to achieve the above object, the aspect of the present invention takes the following measures. That is, the terminal device according to an embodiment of the present invention is a terminal device, and when an aperiodic CSI (Channel State Information) report is triggered by the value of the 2-bit CSI request field, the apriority for any serving cell is determined. The first information used to indicate whether a dick CSI report is triggered, and if the aperiodic CSI report is triggered by the value of the 3-bit CSI request field, the aperiodic for which serving cell A receiving unit that receives second information used to indicate whether a CSI report is triggered, and the 2-bit CSI request included in downlink control information used for scheduling of a physical uplink shared channel (PUSCH) Field When an aperiodic CSI report is triggered, the aperiodic CSI report is executed based on the first information and the value of the 2-bit CSI request field, and is included in the downlink control information. Transmitter for executing an aperiodic CSI report based on the second information and the value of the 3-bit CSI request field when an aperiodic CSI report is triggered by the value of the 3-bit CSI request field In a UE specific search space (User Equipment-specific search space) in which more than five downlink cells are set in the terminal apparatus and the downlink control information is provided by C-RNTI If mapped, the downlink In the UE-specific search space in which the 2-bit CSI request field is included in the link control information, more than 5 downlink cells are set in the terminal apparatus, and the downlink control information is provided by C-RNTI. If so, the 3-bit CSI request field is included in the downlink control information.

(2) In addition, the base station apparatus according to one aspect of the present invention is a base station apparatus, and when an aperiodic CSI (Channel レポート State Information) report is triggered by the value of the 2-bit CSI request field, If the aperiodic CSI report is triggered by the value of the 3-bit CSI request field, the first information is used to indicate whether an aperiodic CSI report for the serving cell is triggered. A transmitter that transmits second information used to indicate whether an aperiodic CSI report for a serving cell is triggered; and the downlink control information used for scheduling of a physical uplink shared channel (PUSCH). 2-bit CSI request file When an aperiodic CSI report is triggered by the value of a field, an aperiodic CSI report is received based on the value of the first information and the 2-bit CSI request field, and the downlink control information is included in the downlink control information. When an aperiodic CSI report is triggered by the value of the included 3-bit CSI request field, an aperiodic CSI report is received based on the second information and the value of the 3-bit CSI request field. A UE specific search space (User Equipment-specific search) in which more than five downlink cells are set in the terminal apparatus and the downlink control information is provided by C-RNTI. When mapped in space) The UE-specific search space in which the 2-bit CSI request field is included in the downlink control information, more than 5 downlink cells are set in the terminal device, and the downlink control information is provided by C-RNTI In the case of mapping in, the downlink control information includes the 3-bit CSI request field.

(3) Moreover, the communication method in one aspect of the present invention is a communication method of a terminal device, and when an aperiodic CSI (Channel State Information) report is triggered by a value of a 2-bit CSI request field, If the first information used to indicate which serving cell for which the aperiodic CSI report is triggered is received and the aperiodic CSI report is triggered by the value of the 3-bit CSI request field, 2 bits included in downlink control information used for scheduling of physical uplink shared channel (PUSCH), receiving second information used to indicate whether an aperiodic CSI report for a serving cell is triggered CSI Request Feel When an aperiodic CSI report is triggered by the value of, the aperiodic CSI report is executed based on the value of the first information and the 2-bit CSI request field, and is included in the downlink control information When the aperiodic CSI report is triggered by the value of the 3-bit CSI request field, the aperiodic CSI report is executed based on the second information and the value of the 3-bit CSI request field. When more than 5 downlink cells are set in the terminal apparatus and the downlink control information is mapped in a UE specific search space (User Equipment-specific search space) provided by C-RNTI Includes the downlink control information. When the 2-bit CSI request field is included, more than 5 downlink cells are set in the terminal device, and the downlink control information is mapped in the UE specific search space provided by C-RNTI The downlink control information includes the 3-bit CSI request field.

(4) A communication method according to an aspect of the present invention is a communication method of a base station apparatus, in which an aperiodic CSI (Channel State Information) report is triggered by a value of a 2-bit CSI request field. Send first information used to indicate which serving cell's aperiodic CSI report is triggered, and when the aperiodic CSI report is triggered by the value of the 3-bit CSI request field, The 2nd information used in order to indicate which serving cell to which the aperiodic CSI report is triggered is transmitted, and the 2nd information included in the downlink control information used for scheduling of the physical uplink shared channel (PUSCH) Bit CSI request fee When an aperiodic CSI report is triggered by the value of the command, an aperiodic CSI report is received based on the value of the first information and the 2-bit CSI request field, and the downlink control information is included in the downlink control information. When an aperiodic CSI report is triggered by the value of the included 3-bit CSI request field, an aperiodic CSI report is received based on the second information and the value of the 3-bit CSI request field. Then, more than 5 downlink cells are set in the terminal device, and the downlink control information is mapped in a UE specific search space (User Equipment-specific search space) provided by C-RNTI. In the case, the downlink control information Includes the 2-bit CSI request field, more than 5 downlink cells are set in the terminal device, and the downlink control information is mapped in the UE specific search space provided by C-RNTI. Includes the 3-bit CSI request field in the downlink control information.

(5) An integrated circuit according to an embodiment of the present invention is an integrated circuit mounted on a terminal device, and an aperiodic CSI (Channel （State Information) report is triggered by a value of a 2-bit CSI request field. The first information used to indicate to which serving cell an aperiodic CSI report is triggered, and the aperiodic CSI report is triggered by the value of the 3-bit CSI request field In addition, a function for receiving second information used to indicate which serving cell to which an aperiodic CSI report is triggered, and downlink control information used for scheduling of a physical uplink shared channel (PUSCH) The 2-bit CSI included When the aperiodic CSI report is triggered by the value of the quest field, the aperiodic CSI report is executed based on the value of the first information and the 2-bit CSI request field, and the downlink control information When the aperiodic CSI report is triggered by the value of the 3-bit CSI request field included in the ASI, the aperiodic CSI report is generated based on the second information and the value of the 3-bit CSI request field. A UE-specific search space in which the terminal device is caused to perform a function to be executed, more than five downlink cells are set in the terminal device, and the downlink control information is provided by C-RNTI. User Equipment-specific search space) In the case of mapping, the 2-bit CSI request field is included in the downlink control information, more than 5 downlink cells are set in the terminal device, and the downlink control information is C- When mapped in the UE specific search space given by RNTI, the downlink control information includes the 3-bit CSI request field.

(6) An integrated circuit according to one embodiment of the present invention is an integrated circuit mounted on a base station apparatus, and an aperiodic CSI (Channel State Information) report is triggered by a value of a 2-bit CSI request field. The first information used to indicate to which serving cell the aperiodic CSI report is triggered, and the aperiodic CSI report was triggered by the value of the 3-bit CSI request field A function to transmit the second information used to indicate which serving cell to trigger the aperiodic CSI report, and downlink control information used for scheduling of the physical uplink shared channel (PUSCH) The 2-bit CS included in When an aperiodic CSI report is triggered by the value of the request field, an aperiodic CSI report is received based on the value of the first information and the 2-bit CSI request field, and the downlink control information When the aperiodic CSI report is triggered by the value of the 3-bit CSI request field included in the ASI, the aperiodic CSI report is generated based on the second information and the value of the 3-bit CSI request field. UE specific search space in which the base station apparatus is provided with the function of receiving, the terminal apparatus is configured with 5 or less downlink cells, and the downlink control information is provided by C-RNTI. (User Equipment-specific search spac When mapped in e), the downlink control information includes the 2-bit CSI request field, more than 5 downlink cells are set in the terminal device, and the downlink control information is C -When mapped in the UE specific search space given by RNTI, the downlink control information includes the 3-bit CSI request field.

According to the present invention, uplink control information can be efficiently transmitted.

It is a figure which shows the concept of the radio | wireless communications system in this embodiment. It is a figure which shows the structure of the slot in this embodiment. It is a figure explaining the PUCCH cell group in this embodiment. It is a figure for demonstrating the transmission method of HARQ-ACK in this embodiment. It is a figure for demonstrating the aperiodic CSI report in this embodiment. It is a figure explaining the instruction | indication of transmission of only uplink control information in this embodiment. It is a schematic block diagram which shows the structure of the terminal device 1 in this embodiment. It is a schematic block diagram which shows the structure of the base station apparatus 3 in this embodiment.

Hereinafter, embodiments of the present invention will be described.

FIG. 1 is a conceptual diagram of a wireless communication system in the present embodiment. In FIG. 1, the radio communication system includes terminal apparatuses 1A to 1C and a base station apparatus 3. Hereinafter, the terminal devices 1A to 1C are also referred to as terminal devices 1.

The physical channel and physical signal in this embodiment will be described.

In FIG. 1, the following uplink physical channels are used in uplink wireless communication from the terminal device 1 to the base station device 3. Here, the uplink physical channel is used to transmit information output from an upper layer.
-PUCCH (Physical Uplink Control Channel)
・ PUSCH (Physical Uplink Shared Channel)
・ PRACH (Physical Random Access Channel)

The PUCCH is used for transmitting uplink control information (Uplink Control Information: UCI). Here, the uplink control information may include channel state information (CSI: Channel State Information) used to indicate the state of the downlink channel. Further, the uplink control information may include a scheduling request (SR: “Scheduling” Request) used for requesting the UL-SCH resource. Further, the uplink control information may include HARQ-ACK (Hyblid Automatic Repeat request ACKnowledgement). HARQ-ACK may indicate HARQ-ACK for downlink data (Transport block, Medium Access Control Protocol Data Unit: MAC-PDU, Downlink-Shared Channel: DL-SCH, Physical Downlink Shared Channel: PDSCH).

That is, HARQ-ACK may indicate ACK (acknowledgement) or NACK (negative-acknowledgement). Here, HARQ-ACK is also referred to as ACK / NACK, HARQ feedback, HARQ response, HARQ information, or HARQ control information.

The PUSCH is used to transmit uplink data (Uplink-Shared Channel: UL-SCH). The PUSCH may also be used to transmit HARQ-ACK and / or CSI along with uplink data. Also, the PUSCH may be used to transmit only CSI, or only HARQ-ACK and CSI. That is, PUSCH may be used to transmit only uplink control information.

Here, the base station device 3 and the terminal device 1 exchange (transmit / receive) signals in a higher layer. For example, the base station device 3 and the terminal device 1 transmit and receive RRC signaling (RRC message: Radio Resource Control message, RRC information: also called Radio Resource Control information) in a radio resource control (RRC: Radio Resource Control) layer. May be. Further, the base station device 3 and the terminal device 1 may transmit and receive a MAC control element in a MAC (Medium Access Control) layer. Here, the RRC signaling and / or the MAC control element is also referred to as a higher layer signal.

PUSCH may be used to transmit RRC signaling and MAC control elements. Here, the RRC signaling transmitted from the base station apparatus 3 may be common signaling for a plurality of terminal apparatuses 1 in the cell. Further, the RRC signaling transmitted from the base station device 3 may be signaling dedicated to a certain terminal device 1 (also referred to as dedicated signaling). That is, user device specific (user device specific) information may be transmitted to a certain terminal device 1 using dedicated signaling.

PRACH is used to transmit a random access preamble. PRACH may also be used to indicate initial connection establishment (initial ハンドオーバ connection establishment) procedures, handover procedures, connection re-establishment procedures, synchronization for uplink transmissions (timing adjustment), and PUSCH resource requirements. Good.

In FIG. 1, the following uplink physical signals are used in uplink wireless communication. Here, the uplink physical signal is not used for transmitting information output from the higher layer, but is used by the physical layer.
・ Uplink Reference Signal (UL RS)

In this embodiment, the following two types of uplink reference signals are used.
DMRS (Demodulation Reference Signal)
・ SRS (Sounding Reference Signal)

DMRS is related to transmission of PUSCH or PUCCH. DMRS is time-multiplexed with PUSCH or PUCCH. The base station apparatus 3 uses DMRS to perform propagation channel correction for PUSCH or PUCCH. Hereinafter, transmitting both PUSCH and DMRS is simply referred to as transmitting PUSCH. Hereinafter, transmitting both PUCCH and DMRS is simply referred to as transmitting PUCCH.

SRS is not related to PUSCH or PUCCH transmission. The base station apparatus 3 uses SRS to measure the uplink channel state.

In FIG. 1, the following downlink physical channels are used in downlink wireless communication from the base station apparatus 3 to the terminal apparatus 1. Here, the downlink physical channel is used to transmit information output from an upper layer.
・ PBCH (Physical Broadcast Channel)
・ PCFICH (Physical Control Format Indicator Channel)
・ PHICH (Physical Hybrid automatic repeat request Indicator Channel)
・ PDCCH (Physical Downlink Control Channel)
・ EPDCCH (Enhanced Physical Downlink Control Channel)
・ PDSCH (Physical Downlink Shared Channel)
・ PMCH (Physical Multicast Channel)

The PBCH is used to broadcast a master information block (Master Information Block: MIB, Broadcast Channel: BCH) commonly used in the terminal device 1.

PCFICH is used for transmitting information indicating a region (OFDM symbol) used for transmission of PDCCH.

The PHICH is used to transmit an HARQ indicator (HARQ feedback, response information) indicating ACK (ACKnowledgement) or NACK (Negative ACKnowledgement) for uplink data (Uplink Shared Channel: UL-SCH) received by the base station apparatus 3. It is done.

PDCCH and EPDCCH are used to transmit downlink control information (Downlink Control Information: DCI). Here, a plurality of DCI formats are defined for transmission of downlink control information. That is, fields for downlink control information are defined in the DCI format and mapped to information bits.

For example, a DCI format (for example, DCI format 1A, DCI format 1C) used for scheduling one PDSCH (transmission of one downlink transport block) in one cell is defined as a DCI format for the downlink. May be.

Here, the DCI format for the downlink includes information related to PDSCH scheduling. For example, the DCI format for the downlink includes downlink control information such as a carrier indicator field (CIF), information on resource block allocation, information on MCS (Modulation and Coding Scheme), and the like. Here, the DCI format for the downlink is also called a downlink grant (downlink grant) or a downlink assignment (downlink assignment).

Further, for example, as a DCI format for uplink, DCI formats (for example, DCI format 0, DCI format 4) used for scheduling one PUSCH (transmission of one uplink transport block) in one cell are used. Defined.

Here, the information on PUSCH scheduling is included in the DCI format for the uplink. For example, the DCI format for the uplink includes a carrier indicator field (CIF), information on resource block assignment and / or hopping (Resource block assignment and and / or hopping resource allocation), MCS and / or redundancy sea version. This includes downlink control information such as information on (Modulation and coding scheme and / or redundancy and version) and information used to indicate the number of transmission layers (Precoding information and number number of layers). Here, the DCI format for the uplink is also referred to as an uplink grant or an uplink assignment.

When the PDSCH resource is scheduled using the downlink assignment, the terminal device 1 may receive the downlink data using the scheduled PDSCH. Moreover, when the PUSCH resource is scheduled using the uplink grant, the terminal device 1 may transmit the uplink data and / or the uplink control information using the scheduled PUSCH.

Here, the terminal device 1 may monitor a set of PDCCH candidates (PDCCH candidates) and / or EPDCCH candidates (EPDCCH candidates). Hereinafter, PDCCH may indicate PDCCH and / or EPDDCH. Here, the PDCCH candidate indicates a candidate in which the PDCCH may be arranged and / or transmitted by the base station apparatus 3. In addition, the term “monitor” may include the meaning that the terminal apparatus 1 attempts to decode each PDCCH in the set of PDCCH candidates according to all the DCI formats to be monitored.

The set of PDCCH candidates that the terminal device 1 monitors is also referred to as a search space. The search space may include a common search space (CSS: Common Search Space). For example, the CSS may be defined as a common space for the plurality of terminal devices 1. The search space may include a user device specific search space (USS: “UE-specific” Search “Space”). For example, the USS may be defined based on at least a C-RNTI assigned to the terminal device 1. The terminal device 1 may monitor the PDCCH and detect the PDCCH addressed to itself in CSS and / or USS.

Here, the RNTI assigned to the terminal device 1 by the base station device 3 is used for transmission of the downlink control information (transmission on the PDCCH). Specifically, a CRC (Cyclic Redundancy Check) parity bit is added to the DCI format (which may be downlink control information), and after the CRC parity bit is added, the CRC parity bit is scrambled by the RNTI. Here, the CRC parity bit added to the DCI format may be obtained from the payload of the DCI format.

The terminal device 1 tries to decode the DCI format to which the CRC parity bit scrambled by the RNTI is added, and detects the DCI format in which the CRC is successful as the DCI format addressed to itself (also referred to as blind decoding). ) That is, the terminal device 1 may detect the PDCCH accompanied by the CRC scrambled by the RNTI. Further, the terminal device 1 may detect a PDCCH accompanied by a DCI format to which a CRC parity bit scrambled by RNTI is added.

Here, the RNTI may include a C-RNTI (Cell-Radio Network Temporary Identifier). The C-RNTI is a unique (unique) identifier for the terminal device 1 used for RRC connection and scheduling identification. C-RNTI may also be used for dynamically scheduled unicast transmissions.

RNTI may include SPS C-RNTI (Semi-Persistent Scheduling C-RNTI). The SPS C-RNTI is a unique (unique) identifier for the terminal device 1 that is used for semi-persistent scheduling. SPS C-RNTI may also be used for semi-persistently scheduled unicast transmissions.

PDSCH is used to transmit downlink data (Downlink Shared Channel: DL-SCH). The PDSCH is used for transmitting a system information message. Here, the system information message may be cell specific (cell specific) information. System information is included in RRC signaling. The PDSCH is used to transmit RRC signaling and a MAC control element.

PMCH is used to transmit multicast data (Multicast Channel: MCH).

In FIG. 1, the following downlink physical signals are used in downlink wireless communication. Here, the downlink physical signal is not used for transmitting information output from the upper layer, but is used by the physical layer.
・ Synchronization signal (SS)
・ Downlink Reference Signal (DL RS)

The synchronization signal is used for the terminal device 1 to synchronize the downlink frequency domain and time domain. In the TDD scheme, the synchronization signal is arranged in

subframes

0, 1, 5, and 6 in the radio frame. In the FDD scheme, the synchronization signal is arranged in

subframes

0 and 5 in the radio frame.

The downlink reference signal is used for the terminal device 1 to correct the propagation path of the downlink physical channel. Here, the downlink reference signal is used for the terminal apparatus 1 to calculate downlink channel state information.

In this embodiment, the following five types of downlink reference signals are used.
-CRS (Cell-specific Reference Signal)
-URS (UE-specific Reference Signal) related to PDSCH
DMRS (Demodulation Reference Signal) related to EPDCCH
NZP CSI-RS (Non-Zero Power Chanel State Information-Reference Signal)
・ ZP CSI-RS (Zero Power Chanel State Information-Reference Signal)
MBSFN RS (Multimedia Broadcast and Multicast Service over Single Frequency Network Reference signal)
・ PRS (Positioning Reference Signal)

Here, the downlink physical channel and the downlink physical signal are collectively referred to as a downlink signal. The uplink physical channel and the uplink physical signal are collectively referred to as an uplink signal. The downlink physical channel and the uplink physical channel are collectively referred to as a physical channel. The downlink physical signal and the uplink physical signal are collectively referred to as a physical signal.

BCH, MCH, UL-SCH and DL-SCH are transport channels. A channel used in a medium access control (Medium Access Control: MAC) layer is referred to as a transport channel. A transport channel unit used in the MAC layer is also referred to as a transport block (transport block: TB) or a MAC PDU (Protocol Data Unit). In the MAC layer, HARQ (HybridbrAutomatic Repeat reQuest) is controlled for each transport block. The transport block is a unit of data that the MAC layer delivers to the physical layer. In the physical layer, the transport block is mapped to a code word, and an encoding process is performed for each code word.

Hereafter, carrier aggregation will be described.

In the present embodiment, one or a plurality of serving cells may be set for the terminal device 1. A technique in which the terminal device 1 communicates via a plurality of serving cells is referred to as cell aggregation or carrier aggregation.

Here, the present embodiment may be applied to each of one or a plurality of serving cells set for the terminal device 1. Further, the present embodiment may be applied to a part of one or a plurality of serving cells set for the terminal device 1. Further, the present embodiment may be applied to each of one or a plurality of serving cell groups (for example, PUCCH cell groups) set for the terminal device 1 described later. In addition, the present embodiment may be applied to a part of one or a plurality of serving cell groups set for the terminal device 1.

In the present embodiment, TDD (Time Division Duplex) and / or FDD (Frequency Division Duplex) may be applied. Here, in the case of carrier aggregation, TDD or FDD may be applied to all of one or a plurality of serving cells. In the case of carrier aggregation, a serving cell to which TDD is applied and a serving cell to which FDD is applied may be aggregated. Here, the frame structure corresponding to FDD is also referred to as “frame structure type 1”. The frame structure corresponding to TDD is also referred to as “frame structure type 2”.

Here, the set one or more serving cells include one primary cell and one or more secondary cells. The primary cell may be a serving cell that has undergone an initial connection establishment (initial connectionabestablishment) procedure, a serving cell that has initiated a connection re-establishment procedure, or a cell designated as a primary cell in a handover procedure. Good. Here, the secondary cell may be set at the time when the RRC connection is established or later.

Here, in the downlink, a carrier corresponding to a serving cell is referred to as a downlink component carrier. In the uplink, a carrier corresponding to a serving cell is referred to as an uplink component carrier. Further, the downlink component carrier and the uplink component carrier are collectively referred to as a component carrier.

Further, the terminal device 1 may perform transmission and / or reception on a plurality of physical channels simultaneously in one or a plurality of serving cells (component carriers). Here, one physical channel may be transmitted in one serving cell (component carrier) among a plurality of serving cells (component carriers).

Here, the primary cell is used for transmission of PUCCH. Also, the primary cell is not deactivated (primary cell cannot be deactivated). Cross-carrier scheduling is not applied to primary (Cross-carrier scheduling does not apply to primary cell). That is, the primary cell is always scheduled using the PDCCH in the primary cell (primary cell is always scheduled via its PDCCH).

Further, when PDCCH (may be monitored by PDCCH) is set in a certain secondary cell, the cross carrier scheduling may not be applied to the certain secondary cell (In a case that PDCCH (PDCCH monitoring) of a secondary cell is configured, cross-carries scheduling may not apply this secondary cell). That is, in this case, the secondary cell may always be scheduled using the PDCCH in the secondary cell. Further, when PDCCH (which may be monitored by PDCCH) is not set in a certain secondary cell, cross-carrier scheduling is applied, and the secondary cell is always PDCCH in one other serving cell (one other serving cell). May be scheduled.

Here, in this embodiment, the secondary cell used for transmission of PUCCH is called a PUCCH secondary cell and a special secondary cell. In the present embodiment, secondary cells that are not used for PUCCH transmission are referred to as non-PUCCH secondary cells, non-special secondary cells, non-PUCCH serving cells, and non-PUCCH cells. Further, the primary cell and the PUCCH secondary cell are collectively referred to as a PUCCH serving cell and a PUCCH cell.

Here, the PUCCH serving cell (primary cell, PUCCH secondary cell) always has a downlink component carrier and an uplink component carrier. Also, PUCCH resources are set in the PUCCH serving cell (primary cell, PUCCH secondary cell).

Also, the non-PUCCH serving cell (non-PUCCH secondary cell) may have only downlink component carriers. Moreover, a non-PUCCH serving cell (non-PUCCH secondary cell) may have a downlink component carrier and an uplink component carrier.

The terminal device 1 performs transmission on the PUCCH in the PUCCH serving cell. That is, the terminal device 1 performs transmission on the PUCCH in the primary cell. Moreover, the terminal device 1 performs transmission by PUCCH in a PUCCH secondary cell. Moreover, the terminal device 1 does not perform transmission on the PUCCH in the non-special secondary cell.

Here, you may define a PUCCH secondary cell as a serving cell which is not a primary cell and a secondary cell.

That is, the PUCCH secondary cell is used for transmission of PUCCH. Further, the PUCCH secondary cell may not be deactivated (PUCCH secondary cell may not be deactivated). Here, as will be described later, the PUCCH secondary cell may be activated and / or deactivated.

Also, the cross carrier scheduling may not be applied to the PUCCH secondary cell (Cross-carrier scheduling may not apply to PUCCH secondary cell). That is, the PUCCH secondary cell may always be scheduled using the PDCCH in the PUCCH secondary cell (PUCCH secondary cell is always scheduled via its PDCCH). Here, the cross carrier scheduling may be applied to the PUCCH secondary cell (Cross-carrier scheduling may apply to PUCCH secondary cell). That is, the PUCCH secondary cell may be scheduled using the PDCCH in one other serving cell.

For example, when PDCCH (which may be monitored by PDCCH) is set in the PUCCH secondary cell, the cross carrier scheduling may not be applied to the PUCCH secondary cell (In a case that PDCCH (PDCCH monitoring) of a PUCCH secondary cell is configured, cross-carries scheduling may not apply this PUCCH secondary cell). That is, in this case, the PUCCH secondary cell may always be scheduled using the PDCCH in the PUCCH secondary cell. In addition, when PDCCH (which may be monitored by PDCCH) is not set in the PUCCH secondary cell, cross carrier scheduling is applied, and the PUCCH secondary cell is always scheduled using PDCCH in one other serving cell. May be.

Here, linking may be defined between the uplink (for example, uplink component carrier) and the downlink (for example, downlink component carrier). That is, based on the linking between the uplink and the downlink, the serving cell for the downlink assignment (the serving cell in which transmission on the PDSCH (downlink transmission) scheduled by the downlink assignment is performed) is identified. Also good. Further, based on linking between the uplink and the downlink, a serving cell for the uplink grant (a serving cell in which transmission on the PUSCH scheduled for the uplink grant (uplink transmission) is performed) may be identified. . Here, there is no carrier indicator field in the downlink assignment or the uplink.

That is, the downlink assignment received in the primary cell may correspond to the downlink transmission in the primary cell. Further, the uplink grant received in the primary cell may correspond to uplink transmission in the primary cell. Moreover, the downlink assignment received in the PUCCH secondary cell may correspond to the downlink transmission in the PUCCH secondary cell. Moreover, the uplink grant received in the PUCCH secondary cell may correspond to the uplink transmission in the PUCCH secondary cell.

Further, the downlink assignment received in a certain secondary cell (PUCCH secondary cell and / or non-PUCCH secondary cell) may correspond to downlink transmission in the certain secondary cell. Moreover, the uplink grant received in a certain secondary cell (PUCCH secondary cell and / or non-PUCCH secondary cell) may correspond to the uplink transmission in the certain secondary cell.

Hereinafter, the configuration of the slot in this embodiment will be described.

FIG. 2 is a diagram showing a configuration of slots in the present embodiment. In FIG. 2, the horizontal axis represents the time axis, and the vertical axis represents the frequency axis. Here, normal CP (normal Cyclic Prefix) may be applied to the OFDM symbol. Further, an extended CP (extended Cyclic Prefix) may be applied to the OFDM symbol. A physical signal or physical channel transmitted in each slot is represented by a resource grid.

Here, in the downlink, the resource grid may be defined by a plurality of subcarriers and a plurality of OFDM symbols. In the uplink, a resource grid may be defined by a plurality of subcarriers and a plurality of SC-FDMA symbols. Further, the number of subcarriers constituting one slot may depend on the cell bandwidth. The number of OFDM symbols or SC-FDMA symbols constituting one slot may be seven. Here, each of the elements in the resource grid is referred to as a resource element. Also, the resource element may be identified using a subcarrier number and an OFDM symbol or SC-FDMA symbol number.

Here, the resource block may be used to express a mapping of a certain physical channel (such as PDSCH or PUSCH) to a resource element. In addition, virtual resource blocks and physical resource blocks may be defined as resource blocks. A physical channel may first be mapped to a virtual resource block. Thereafter, the virtual resource block may be mapped to a physical resource block. One physical resource block may be defined from 7 consecutive OFDM symbols or SC-FDMA symbols in the time domain and 12 consecutive subcarriers in the frequency domain. Therefore, one physical resource block may be composed of (7 × 12) resource elements. One physical resource block may correspond to one slot in the time domain and 180 kHz in the frequency domain. Also, physical resource blocks may be numbered from 0 in the frequency domain.

FIG. 3 is a diagram illustrating a PUCCH cell group in the present embodiment. FIG. 3 shows three examples (Example (a), Example (b), and Example (c)) as examples of setting (configuration and definition) of the PUCCH cell group. Here, in this embodiment, a group of a plurality of serving cells is referred to as a PUCCH cell group. The PUCCH cell group may be a group related to transmission on PUCCH (transmission of uplink control information on PUCCH). Here, a certain serving cell belongs to any one PUCCH cell group. Here, as a matter of course, the PUCCH cell group may be set differently from the example shown in FIG.

Here, the base station device 3 and / or the terminal device 1 in the present embodiment may support carrier aggregation of up to 32 downlink component carriers (downlink cells, up to 32 downlink component carriers), for example. . That is, the base station device 3 and the terminal device 1 can simultaneously perform transmission and / or reception on a plurality of physical channels in up to 32 serving cells. Here, the number of uplink component carriers may be smaller than the number of downlink component carriers.

For example, the base station apparatus 3 may set a PUCCH cell group. For example, the base station apparatus 3 may transmit an upper layer signal including information used for setting a PUCCH cell group. For example, an index (cell group index, information) for identifying a PUCCH cell group is set (defined), and the base station apparatus 3 uses an upper layer signal including an index used for identifying a PUCCH cell group. You may send it.

FIG. 3A shows that the first PUCCH cell group and the second cell group are set as the PUCCH cell group. For example, in FIG. 3A, the base station device 3 may transmit a downlink signal in the first cell group, and the terminal device 3 may transmit an uplink signal in the first cell group (first Uplink control information may be transmitted on PUCCH in one cell group). For example, when 20 serving cells (downlink component carrier, downlink cell) are set or activated in the first cell group, the base station device 3 and the terminal device 1 correspond to the 20 downlink component carriers. Uplink control information may be transmitted and received.

That is, the terminal device 1 may transmit HARQ-ACK (HARQ-ACK for transmission on PDSCH, HARQ-ACK for transport block) corresponding to 20 downlink component carriers. Moreover, the terminal device 1 may transmit CSI corresponding to 20 downlink component carriers. Moreover, the terminal device 1 may transmit SR for every PUCCH cell group. Similarly, the base station apparatus 3 and the terminal apparatus 1 may transmit / receive uplink control information in the second PUCCH cell group.

Similarly, the base station device 3 and the terminal device 1 may set a PUCCH cell group as shown in FIG. 3B and transmit / receive uplink control information. Moreover, the base station apparatus 3 and the terminal device 1 may set a PUCCH cell group as shown in FIG.3 (c), and may transmit / receive uplink control information.

Here, one PUCCH cell group may include at least one PUCCH serving cell. One PUCCH cell group may include only one PUCCH serving cell. One PUCCH cell group may include one PUCCH serving cell and one or more non-PUCCH serving cells.

Here, the PUCCH cell group including the primary cell is referred to as a primary PUCCH cell group. A PUCCH cell group that does not include a primary cell is referred to as a secondary PUCCH cell group. That is, the secondary PUCCH cell group may include a PUCCH secondary cell. For example, the index for the primary PUCCH cell group may always be defined as 0. Moreover, the index with respect to a secondary PUCCH cell group may be set by the base station apparatus 3 (a network apparatus may be sufficient).

The base station apparatus 3 may transmit the information used for indicating the PUCCH secondary cell by including it in the higher layer signal and / or PDCCH (downlink control information transmitted on the PDCCH). The terminal device 1 may determine the PUCCH secondary cell based on information used to indicate the PUCCH secondary cell.

As described above, the PUCCH of the PUCCH serving cell includes uplink control information (HARQ-ACK, CSI (eg, periodic CSI)) for the serving cell (PUCCH serving cell, non-PUCCH serving cell) included in the PUCCH cell group to which the PUCCH serving cell belongs. And / or SR) may be used.

That is, uplink control information (HARQ-ACK, CSI (eg, periodic CSI) and / or SR) for the serving cell (PUCCH serving cell, non-PUCCH serving cell) included in the PUCCH cell group is included in the PUCCH cell group. Transmitted using the PUCCH in the serving PUCCH serving cell.

Here, the present embodiment may be applied only to the transmission of HARQ-ACK. Further, the present embodiment may be applied only to transmission of CSI (for example, periodic CSI). Further, the present embodiment may be applied only to SR transmission. Further, the present embodiment may be applied to HARQ-ACK transmission, CSI (for example, periodic CSI) transmission, and / or SR transmission.

That is, for example, a PUCCH cell group for transmission of HARQ-ACK may be set. Moreover, the PUCCH cell group with respect to transmission of CSI (for example, periodic CSI) may be set. Moreover, the PUCCH cell group with respect to transmission of SR may be set.

For example, a PUCCH cell group for transmission of HARQ-ACK, a PUCCH cell group for transmission of CSI (for example, periodic CSI), and / or a PUCCH cell group for transmission of SR may be individually configured. Further, even if a common PUCCH cell group is set as a PUCCH cell group for transmission of HARQ-ACK, a PUCCH cell group for transmission of CSI (for example, periodic CSI), and / or a PUCCH cell group for transmission of SR. Good.

Here, the number of PUCCH cell groups for transmission of HARQ-ACK may be one. The number of PUCCH cell groups for CSI transmission may be one. The number of PUCCH cell groups for SR transmission may be one.

Also, as will be described later, the PUCCH cell group for transmission of CSI (for example, periodic CSI) and / or the PUCCH cell group for transmission of SR may not be set (defined).

Here, a plurality of formats may be defined (supported) for the PUCCH. A format supported for PUCCH (a format supported by PUCCH) is also referred to as a PUCCH format. For example, by using the following PUCCH format, a combination of uplink control information on PUCCH (transmission of a combination of uplink control information) is supported.
・ Format 1
・ Format 1a
・ Format 1b
・ Format 2
・ Format 2a
・ Format 2b
・ Format 3
・ Format 4

PUCCH format 1 may be defined for positive SR (positive SR). For example, a positive SR may be used to indicate that a UL-SCH resource is requested. Here, a negative SR (negative SR) may be used to indicate that no UL-SCH resource is required. Hereinafter, PUCCH format 1 is also referred to as a first PUCCH format.

PUCCH format 1a is defined for 1-bit HARQ-ACK (1-bit HARQ-ACK) or 1-bit HARQ-ACK with positive SR (1-bit HARQ-ACK with positive SR). May be. The PUCCH format 1b is defined for 2-bit HARQ-ACK (2-bit HARQ-ACK) or 2-bit HARQ-ACK with positive SR (2-bit HARQ-ACK with positive SR). May be. Also, the PUCCH format 1b may be defined for transmission of 4 bits or less of HARQ-ACK (up to 4-bit HARQ-ACK with channel selection) by channel selection. Hereinafter, PUCCH format 1a and / or PUCCH format 1b is also referred to as a second PUCCH format.

Also, PUCCH format 2 may be defined for a CSI report (a CSI report when not multiplexed with HARQ-ACK) when HARQ-ACK is not multiplexed. The PUCCH format 2a may be defined for a CSI report (a CSI report multiplexed with 1-bit HARQ-ACK) in which 1-bit HARQ-ACK is multiplexed. The PUCCH format 2b may be defined for a CSI report (a CSI report multiplexed with 1-bit HARQ-ACK) in which 2-bit HARQ-ACK is multiplexed. Here, PUCCH format 2 may be defined for a CSI report (a CSI report multiplexed with HARQ-ACK for extended cyclic prefix) in which HARQ-ACK for the extended cyclic prefix is multiplexed. Hereinafter, the PUCCH format 2, the PUCCH format 2a, and / or the PUCCH format 2b are also referred to as a third PUCCH format.

PUCCH format 3 may be defined for HARQ-ACK (up-to-10-bit HARQ-ACK) of 10 bits or less. In addition, PUCCH format 3 is 11 bits or less (up ビット to 11-bit corresponding to up to 10-bit HARQ-ACK and 1-bit positive / negative corresponding to 10-bit HARQ-ACK and 1-bit positive / negative SR. SR). That is, positive SR or negative SR may be indicated using 1-bit information. Here, HARQ-ACK of 10 bits or less, and 11 bits or less corresponding to 10 bits of HARQ-ACK and 1 bit of positive / negative SR may be defined for FDD.

Also, PUCCH format 3 may be defined for HARQ-ACK (up-to-20-bit HARQ-ACK) of 20 bits or less. Also, PUCCH format 3 is 21 bits or less (up to 21-bit corresponding to up to 20-bit HARQ-ACK and 1-bit positive / negative corresponding to 20-bit HARQ-ACK and 1-bit positive / negative SR. SR). Here, HARQ-ACK of 20 bits or less and 21 bits or less corresponding to 20 bits of HARQ-ACK and 1 bit of positive / negative SR may be defined for TDD.

PUCCH format 3 may be defined for HARQ-ACK and CSI report (HARQ-ACK and a CSI report for one serving cell) for one serving cell. PUCCH format 3 includes HARQ-ACK, 1-bit positive / negative SR, and CSI report for one serving cell (HARQ-ACK, 1-bit positive / negative SR (if any) and a CSI report for one serving cell). Hereinafter, PUCCH format 3 is also referred to as a fourth PUCCH format.

Also, PUCCH format 4 may be defined for HARQ-ACK corresponding to up to 32 serving cells (downlink component carrier, downlink cell). PUCCH format 4 may also be defined for HARQ-ACK and CSI reports. PUCCH format 4 may also be defined for HARQ-ACK and SR. PUCCH format 4 may also be defined for HARQ-ACK, SR, and CSI reports. Here, the CSI report may be a CSI report for one serving cell. Further, the CSI report may be a CSI report for a plurality of serving cells. The SR may be a positive SR and / or a negative SR. Hereinafter, PUCCH format 4 is also referred to as a fifth PUCCH format.

Here, for example, when more than one serving cell with frame structure type 1 is set, the terminal device 1 that supports aggregation of up to two serving cells with frame structure type 1 transmits HARQ-ACK. On the other hand, PUCCH format 1b with channel selection may also be used (A UE that supports aggregating at most 2 serving cells with frame structure type 1 may use PUCCH format 1b with a channel selection for transmission of HARQ-ACK when configured with more than one serving cell with frame structure type 1).

In addition, when more than one serving cell with frame structure type 1 is set, the terminal device 1 that supports aggregation of more than two serving cells with frame structure type 1 can perform HARQ-ACK transmission. May be configured by higher layers to use PUCCH format 1b with channel selection or PUCCH format 3 (A フォーマット UE that supports aggregating more than 2 serving cells with frame structure type 1 may be configured by higher layers to use either PUCCH format 1b with channel selection or PUCCH format 3 for transmission of HARQ-ACK when configured with more than one serving cell with frame structure type 1). That is, the base station apparatus 3 may set the terminal apparatus 1 to use either the PUCCH format 1b with channel selection or the PUCCH format 3 using a higher layer signal.

In addition, when more than one serving cell with frame structure type 1 is set, the terminal device 1 that supports aggregation of more than five serving cells with frame structure type 1 may perform HARQ-ACK transmission. May be configured by an upper layer to use any one of PUCCH format 1b, PUCCH format 3 or PUCCH format 4 with channel selection (A UE that supports aggregating more than 5 serving cells with frame structure type 1 may be configured by higher layers to use any one of PUCCH format 1b with channel selection, PUCCH format 3, or PUCCH format 4 for transmission of HARQ-ACK when configured with more than one serving

Here, the base station apparatus 3 uses PUCCH format 1b, PUCCH format 3 or PUCCH format 4 with channel selection using higher layer signals and / or PDCCH (downlink control information transmitted on PDCCH). You may set with respect to the terminal device 1 so that any one may be used.

Here, when more than five serving cells with the frame structure type 1 are set, the terminal device 1 can perform PUCCH format 1b, PUCCH format 3 with channel selection, or transmission with respect to HARQ-ACK transmission. The higher layer may be set to use any one of the PUCCH formats 4. In addition, when more than five serving cells with frame structure type 1 are activated, the terminal device 1 uses PUCCH format 1b with channel selection, PUCCH format 3 with respect to transmission of HARQ-ACK, or The higher layer may be set to use any one of the PUCCH formats 4.

In addition, when the PUCCH secondary cell is set or activated by the upper layer, the terminal device 1 uses the PUCCH format 1b, PUCCH format 3 or PUCCH format 4 with channel selection for transmission of HARQ-ACK. It may be set by the upper layer to use any one of them. Here, the terminal device 1 may be a terminal device 1 that supports aggregation of more than five serving cells with the frame structure type 1.

In addition, when more than one serving cell with frame structure type 2 is set, the terminal device 1 that supports aggregation of more than one serving cell with frame structure type 2 may perform HARQ-ACK transmission. May be configured by higher layers to use either one of PUCCH format 1b with channel selection or PUCCH format 3 (A UE that supports aggregating more than one serving cells with frame structure type 2 may be configured by higher layers to use either PUCCH format 1b with channel selection or PUCCH format 3 for transmission of HARQ-ACK when configured with more than one serving cell with frame structure type 2). That is, the base station apparatus 3 may set the terminal apparatus 1 to use either the PUCCH format 1b with channel selection or the PUCCH format 3 using a higher layer signal.

In addition, when more than one serving cell with frame structure type 2 is set, the terminal device 1 that supports aggregation of more than five serving cells with frame structure type 2 may perform HARQ-ACK transmission. May be configured by an upper layer to use any one of PUCCH format 1b, PUCCH format 3 or PUCCH format 4 with channel selection (A UE that supports aggregating more than 5 serving cells with frame structure type 1 may be configured by higher layers to use any one of PUCCH format 1b with channel selection, PUCCH format 3, or PUCCH format 4 for transmission of HARQ-ACK when configured with more than one serving That is, the base station apparatus 3 sets the terminal apparatus 1 to use any one of the PUCCH format 1b, the PUCCH format 3 and the PUCCH format 4 accompanied by channel selection using a higher layer signal. May be.

Here, when more than five serving cells with the frame structure type 2 are set, the terminal device 1 can perform PUCCH format 1b with channel selection, PUCCH format 3 with respect to HARQ-ACK transmission, or The higher layer may be set to use any one of the PUCCH formats 4. In addition, when more than five serving cells with frame structure type 2 are activated, the terminal device 1 can perform PUCCH format 1b with channel selection, PUCCH format 3 with respect to transmission of HARQ-ACK, or The higher layer may be set to use any one of the PUCCH formats 4. In addition, when the PUCCH secondary cell is set or activated by the upper layer, the terminal device 1 uses the PUCCH format 1b, PUCCH format 3 or PUCCH format 4 with channel selection for transmission of HARQ-ACK. It may be set by the upper layer to use any one of them. Here, the terminal device 1 may be a terminal device 1 that supports aggregation of more than five serving cells with frame structure type 2.

Here, the base station apparatus 3 uses a higher layer signal for each PUCCH cell group including more than one serving cell (per 基地 PUCCH cellＰＵgroup), and PUCCH format 1b with channel selection, PUCCH format 3, or The terminal apparatus 1 may be set to use any one of the PUCCH formats 4. Also, the terminal device 1 transmits PHACH-ACK for each PUCCH cell group including more than one serving cell (per PUCCH cell group) for PUCCH format 1b, PUCCH format 3 with channel selection, or The higher layer may be set to use any one of the PUCCH formats 4.

Here, the PUCCH cell group may be individually set for each of the PUCCH formats. That is, the terminal device 1 may transmit uplink control information using the corresponding PUCCH format in the PUCCH cell group set for each of the PUCCH formats. Here, the PUCCH cell group may be commonly set for a plurality of PUCCH formats.

For example, a PUCCH cell group for PUCCH format 1 may be set. Moreover, the PUCCH cell group with respect to PUCCH format 1a, PUCCH format 1b, PUCCH format 3, and / or PUCCH format 4 may be set. Also, a PUCCH cell group for PUCCH format 2, PUCCH format 2a, and / or PUCCH format 2b may be set. Here, a PUCCH cell group for PUCCH format 1, PUCCH format 2, PUCCH format 2a, and / or PUCCH format 2b is not set, and PUCCH format 1a, PUCCH format 1b, PUCCH format 3 and / or PUCCH format 4 are used. A PUCCH cell group may be set only for it.

Here, the base station apparatus 3 may set one or a plurality of serving cells using a higher layer signal. For example, one or more secondary cells may be configured to form a set of multiple serving cells with the primary cell. Here, the serving cell set by the base station device 3 may include a PUCCH secondary cell.

Further, the base station apparatus 3 may activate or deactivate one or a plurality of serving cells using a higher layer signal (for example, a MAC control element). For example, the activation or deactivation mechanism may be based on a combination of a MAC control element and a deactivation timer.

Here, the PUCCH secondary cell may be included in the secondary cell activated or deactivated by the base station apparatus 3. That is, the base station apparatus 3 may independently activate or deactivate a plurality of secondary cells including a PUCCH secondary cell using a single command (a single activation / deactivation command). That is, the base station apparatus 3 may transmit a single command used for activating or deactivating the secondary cell using the MAC control element.

Also, as a timer value related to deactivation, one common value may be set for each terminal device 1 by an upper layer (for example, RRC layer). In addition, a timer (timer value) related to deactivation may be held (applied) for each secondary cell. Here, the timer (timer value) related to deactivation may be held only for each non-PUCCH secondary cell. That is, the terminal device 1 may hold (apply) a timer related to deactivation only for each non-PUCCH secondary cell without applying the timer to the PUCCH secondary cell.

Also, a timer related to deactivation for the PUCCH secondary cell and a timer related to deactivation for the non-PUCCH secondary cell may be set. For example, the base station apparatus 3 may transmit an upper layer signal including information for setting with a timer related to deactivation for the PUCCH secondary cell. Moreover, the base station apparatus 3 may transmit the signal of the upper layer in which the information related to the timer relevant to the deactivation with respect to a non-PUCCH secondary cell is included.

Here, the base station apparatus 3 may instruct (set or assign) a PUCCH resource. Here, the PUCCH resource includes a first PUCCH resource (also referred to as n (1) PUCCH), a second PUCCH resource (also referred to as n (2) PUCCH), and a third PUCCH resource (n (3) PUCCH) and a fourth PUCCH resource (also referred to as n (4) PUCCH) may be included.

For example, the base station apparatus 3 may transmit an upper layer signal including the first information used for setting the first PUCCH resource. For example, the SR may be transmitted on the first PUCCH resource. Further, the base station apparatus 3 may transmit an upper layer signal including the second information used for instructing the period and / or offset for the transmission of the SR. The terminal device 1 may transmit the SR based on the setting by the base station device 3. That is, the terminal device 1 may transmit the SR using the first PUCCH resource and the first PUCCH format.

Moreover, the base station apparatus 3 may instruct | indicate a 1st PUCCH resource using the signal and PDCCH of an upper layer. For example, the base station apparatus 3 may transmit an upper layer signal including the third information used for setting the first PUCCH resource. For example, the HARQ-ACK for the second PUCCH format may be transmitted on the first PUCCH resource. The terminal device 1 assigns the first PUCCH resource based on the CCE (Control （Channel （Element) (for example, the lowest CCE index) used for transmission of the PDCCH and the third information. You may decide. The terminal apparatus 1 may use the first PUCCH resource for transmission of HARQ-ACK for the second PUCCH format. That is, the terminal device 1 may transmit HARQ-ACK using the first PUCCH resource and the second PUCCH format.

Further, the base station apparatus 3 may transmit an upper layer signal including the fourth information used for setting the second PUCCH resource. For example, CSI (eg, periodic CSI) may be transmitted on the second PUCCH resource. Here, the second PUCCH resource may be configured for each serving cell. That is, CSI (for example, periodic CSI) for each serving cell may be reported. Further, the base station apparatus 3 may transmit an upper layer signal including fifth information used for instructing a period and / or an offset with respect to a periodic CSI report (periodic CSI report). The terminal device 1 may report CSI periodically based on the setting by the base station device 3. That is, the terminal device 1 may report periodic CSI using the second PUCCH resource and the third PUCCH format.

Moreover, the base station apparatus 3 may instruct | indicate a 3rd PUCCH resource using the signal and PDCCH (It may be the downlink control information transmitted by PDCCH) of an upper layer. For example, the base station device 3 transmits sixth information for setting four values (four third PUCCH resources) related to the third PUCCH resource using a higher layer signal, and Based on the value set in the downlink control information transmitted on the PDCCH for the non-PUCCH serving cell (for example, using “00”, “01”, “10”, “11” set in the 2-bit information field) One third PUCCH resource may be indicated (by indicating one of the set four values).

For example, the base station apparatus 3 indicates one third PUCCH resource using a value set in the transmission power command field for the PUCCH included in the downlink assignment transmitted on the PDCCH for the non-PUCCH serving cell. Also good. For example, HARQ-ACK, SR, and / or CSI (eg, periodic CSI) for the fourth PUCCH format may be transmitted on the third PUCCH resource. The terminal device 1 may transmit HARQ-ACK, SR, and / or CSI (for example, periodic CSI) for the fourth PUCCH format using the third PUCCH resource and the fourth PUCCH format. .

Further, the base station apparatus 3 may set the fourth PUCCH resource using an upper layer signal and / or PDCCH (may be downlink control information transmitted by PDCCH). For example, the base station apparatus 3 may transmit an upper layer signal including the seventh information used for setting the fourth PUCCH resource. Moreover, the base station apparatus 3 may instruct | indicate a 4th PUCCH resource in connection with PDCCH. The terminal device 1 may determine the fourth PUCCH resource based on the PDCCH. Moreover, the base station apparatus 3 may transmit the downlink control information used in order to instruct | indicate a 4th PUCCH resource using PDCCH. For example, the base station apparatus 3 indicates one fourth PUCCH resource using a value set in the transmission power command field for the PUCCH included in the downlink assignment transmitted on the PDCCH for the non-PUCCH serving cell. Also good.

Also, the base station apparatus 3 uses the first command (or MAC control element) used to activate or deactivate the serving cell described above to indicate the fourth PUCCH resource. 8 information may be transmitted. For example, the base station apparatus 3 may indicate the fourth PUCCH resource by using a single command used to activate or deactivate at least the PUCCH secondary cell.

The terminal device 1 may determine the fourth PUCCH resource based on the eighth information included in the single command (or MAC control element) used for activating or deactivating the serving cell. Good. Here, the terminal device 1 uses the PUSCH and / or the PUCCH to perform HARQ-ACK for downlink data (transmission on the PDSCH) including a single command used to indicate the fourth PUCCH resource. You may send it. For example, the terminal device 1 transmits HARQ-ACK to downlink data (transmission on the PDSCH) including at least a single command used to activate or deactivate the PUCCH secondary cell. Also good. Here, the terminal device 1 performs HARQ on downlink data (transmission on the PDSCH) including a single command used to activate or deactivate a secondary cell that does not include the PUCCH secondary cell. -There is no need to send ACK.

For example, HARQ-ACK, SR, and / or CSI (eg, periodic CSI) for the fifth PUCCH format may be transmitted on the fourth PUCCH resource. The terminal device 1 may transmit HARQ-ACK, SR, and / or CSI (for example, periodic CSI) for the fifth PUCCH format using the fourth PUCCH resource and the fifth PUCCH format. .

Furthermore, the base station apparatus 3 may transmit ninth information (also referred to as ServcellIndex) used for identifying the serving cell. For example, the base station apparatus 3 may transmit the ninth information included in either a higher layer signal and / or PDCCH (may be downlink control information transmitted on the PDCCH).

For example, the base station apparatus 3 may transmit an upper layer signal including the first information, the second information, and / or the ninth information. That is, the base station apparatus 3 may instruct (set) a PUCCH serving cell (for example, a primary cell and / or a PUCCH secondary cell) used for SR transmission. The base station device 3 may instruct (set) the PUCCH serving cell in which the first PUCCH resource used for the transmission of SR is set. That is, the base station apparatus may instruct (set) a serving cell in which the first PUCCH format is used. That is, the ninth information may be set for the first PUCCH format. The terminal device 1 uses the PUCCH in the PUCCH serving cell (for example, the primary cell and / or the PUCCH secondary cell) based on the first information, the second information, and / or the ninth information, and performs SR May be sent.

Also, for example, the base station device 3 may transmit an upper layer signal including the third information and / or the ninth information. That is, the base station apparatus 3 may instruct (set) a PUCCH serving cell (for example, a primary cell and / or a PUCCH secondary cell) used for transmission of HARQ-ACK for the second PUCCH format. The base station apparatus 3 may instruct (set) a PUCCH serving cell in which the first PUCCH resource used for HARQ-ACK for the second PUCCH format is set. That is, the base station apparatus may instruct (set) a serving cell in which the second PUCCH format is used. That is, the ninth information may be set for the second PUCCH format. The terminal device 1 is based on the third information, the ninth information, and / or the CCE used for transmission of the PDCCH, in the PUCCH serving cell (for example, the primary cell and / or the PUCCH secondary cell). HARQ-ACK may be transmitted using PUCCH.

Also, for example, the base station apparatus 3 may transmit an upper layer signal including the fourth information, the fifth information, and / or the ninth information. That is, the base station device 3 may instruct (set) a PUCCH serving cell (for example, a primary cell and / or a PUCCH secondary cell) used for transmission of CSI (for example, periodic CSI). The base station apparatus 3 may indicate (set) a PUCCH serving cell in which a second PUCCH resource used for CSI (for example, periodic CSI) transmission is set. That is, the base station apparatus may instruct (set) a serving cell in which the third PUCCH format is used. That is, the ninth information may be set for the third PUCCH format. The terminal device 1 uses the PUCCH in the PUCCH serving cell (for example, the primary cell and / or the PUCCH secondary cell) based on the fourth information, the fifth information, and / or the ninth information to Dick CSI may be transmitted.

Also, for example, the base station apparatus 3 may transmit an upper layer signal including the sixth information and / or the ninth information. That is, the base station apparatus 3 may instruct (set) a PUCCH serving cell (for example, a primary cell and / or a PUCCH secondary cell) used for transmission of HARQ-ACK for the fourth PUCCH format. The base station apparatus 3 may indicate (set) a PUCCH serving cell in which a third PUCCH resource used for HARQ-ACK for the fourth PUCCH format is set. That is, the base station apparatus may instruct (set) a serving cell in which the fourth PUCCH format is used. That is, the ninth information may be set for the fourth PUCCH format. The terminal device 1 determines the PUCCH serving cell (for example, the primary cell and / or the PUCCH based on the sixth information, the ninth information, and / or the value set in the downlink control information transmitted on the PDCCH. HARQ-ACK, SR, and / or SR may be transmitted using PUCCH in the secondary cell.

Further, for example, the base station device 3 may transmit an upper layer signal including the seventh information, the eighth information, and / or the ninth information. That is, the base station apparatus 3 may instruct (set) a PUCCH serving cell (for example, a primary cell and / or a PUCCH secondary cell) used for transmission of HARQ-ACK for the fifth PUCCH format. The base station apparatus 3 may instruct (set) a PUCCH serving cell in which the fourth PUCCH resource used for HARQ-ACK for the fifth PUCCH format is set. That is, the base station apparatus may instruct (set) a serving cell in which the fifth PUCCH format is used. That is, the ninth information may be set for the fifth PUCCH format. The terminal device 1 uses the PUCCH in the PUCCH serving cell (for example, the primary cell and / or the PUCCH secondary cell) based on the seventh information, the eighth information, and / or the ninth information, to perform HARQ. -ACK, SR, and / or CSI may be transmitted.

Here, the ninth information may be set only for the first PUCCH format. That is, the ninth information may be set only for transmission of SR. That is, the base station apparatus 3 may instruct the SR to be transmitted only in the primary cell. Moreover, the base station apparatus 3 may instruct | indicate to transmit SR only in a PUCCH secondary cell. That is, even when transmission on the PUCCH in the primary cell and transmission on the PUCCH in the PUCCH secondary cell are configured, the terminal apparatus 1 transmits SR in any one PUCCH serving cell based on the ninth information. May be performed. That is, the first PUCCH format (or SR transmission) may be defined for each terminal device 1 (per UE). Here, as described above, a PUCCH cell group (per PUCCH cell group) may be set for the first PUCCH format (or transmission of SR).

Also, the ninth information may be set only for the third PUCCH format. That is, the ninth information may be set only for transmission of CSI (for example, periodic CSI). That is, the base station apparatus 3 may instruct the CSI (for example, periodic CSI) to be transmitted only in the primary cell. Moreover, the base station apparatus 3 may instruct | indicate so that CSI (for example, periodic CSI) may be transmitted only in a PUCCH secondary cell. That is, even when transmission on the PUCCH in the primary cell and transmission on the PUCCH in the PUCCH secondary cell are configured, the terminal device 1 uses the CSI (for example, in the PUCCH serving cell based on the ninth information) , Periodic CSI) may be transmitted. That is, the third PUCCH format (or periodic CSI report) may be defined for each terminal device 1 (per UE). Here, as described above, a PUCCH cell group (per PUCCH cell group) may be set for the third PUCCH format (or periodic CSI report).

Also, the ninth information may be set only for the first PUCCH format and the third PUCCH format. That is, the ninth information may be set only for transmission of SR and transmission of CSI (for example, periodic CSI). That is, the base station apparatus 3 may instruct to transmit SR and CSI (for example, periodic CSI) only in the primary cell. Moreover, the base station apparatus 3 may instruct | indicate so that SR and CSI (for example, periodic CSI) may be transmitted only in a PUCCH secondary cell. That is, even when transmission on the PUCCH in the primary cell and transmission on the PUCCH in the PUCCH secondary cell are configured, the terminal device 1 can perform SR and CSI in any one PUCCH serving cell based on the ninth information. (For example, periodic CSI) may be transmitted. That is, the first PUCCH format (SR transmission) and the third PUCCH format (or periodic CSI report) may be defined for each terminal device 1 (per UE).

That is, as described above, the PUCCH cell group may be set only for the second PUCCH format, the fourth PUCCH format, and the fifth PUCCH format.

FIG. 4 is a diagram for explaining a transmission method of HARQ-ACK in the present embodiment.

Hereinafter, the operation described using FIG. 4 may be performed for each PUCCH cell group. That is, the base station apparatus 3 and the terminal apparatus 1 may perform the operation described with reference to FIG. 4 in one PUCCH cell group. In the description of FIG. 4, setting more than one serving cell may mean setting more than one and not more than five serving cells.

Hereinafter, a subframe in which detection of PDCCH and transmission (decoding) on PDSCH based on detection of the PDCCH is performed is also referred to as a first subframe. For example, the first subframe is represented as subframe n-4. Also, a subframe in which HARQ-ACK transmission for transmission (decoding) on the PDSCH is performed is also referred to as a second subframe. For example, the second subframe is represented as subframe n.

As described above, the terminal device 1 may use the first PUCCH resource and the second PUCCH format for transmission of HARQ-ACK in the second subframe. Also, the terminal device 1 may use the third PUCCH resource and the fourth PUCCH format for transmission of HARQ-ACK in the second subframe. Also, the terminal device 1 may use the fourth PUCCH resource and the fifth PUCCH format for transmission of HARQ-ACK in the second subframe.

For example, when one serving cell is set, the terminal device 1 uses the first PUCCH resource and the second PUCCH format for the transmission of the PDSCH indicated by the detection of the PDCCH in the first subframe. May be.

Further, when more than one serving cell is set, the terminal device 1 uses the first PUCCH resource for transmission on the PDSCH only in the primary cell indicated by the detection of the PDCCH in the first subframe. And the second PUCCH format may be used.

Further, when more than one serving cell is set, the terminal device 1 performs the first PUCCH for transmission on the PDSCH only in the PUCCH secondary cell indicated by the detection of the PDCCH in the first subframe. Resources and a second PUCCH format may be used.

Here, when more than one serving cell is set, the terminal apparatus 1 performs the third operation for transmission on the PDSCH only in the PUCCH secondary cell indicated by the detection of the PDCCH in the first subframe. The PUCCH resource and the fourth PUCCH format, or the fourth PUCCH resource and the fifth PUCCH format may be used. As described above, the base station apparatus 3 may set (instruct) whether to use the fourth PUCCH format (PUCCH format 3) or the fifth PUCCH format (PUCCH format 4).

That is, when more than one serving cell is set, the terminal device 1 is instructed to transmit on the PDSCH in at least one PUCCH secondary cell by detecting the PDCCH in the first subframe. The third PUCCH resource and the fourth PUCCH format, or the fourth PUCCH resource and the fifth PUCCH format may be used.

Also, when more than one serving cell is set, the terminal device 1 performs the third PUCCH for transmission on the PDSCH in the non-PUCCH secondary cell indicated by detection of the PDCCH in the first subframe. The resource and the fourth PUCCH format, or the fourth PUCCH resource and the fifth PUCCH format may be used.

That is, when more than one serving cell is set, the terminal device 1 is instructed to transmit on the PDSCH in at least one non-PUCCH secondary cell by detecting the PDCCH in the first subframe. The third PUCCH resource and the fourth PUCCH format, or the fourth PUCCH resource and the fifth PUCCH format may be used.

That is, the terminal device 1 may use the first PUCCH resource and the second PUCCH format for transmission on the PDSCH only in the primary cell. Also, the terminal device 1 may use the third PUCCH resource and the fourth PUCCH format, or the fourth PUCCH resource and the fifth PUCCH format for transmission on the PDSCH only in the PUCCH secondary cell. . That is, the terminal device 1 uses different PUCCH resources for transmission on the PDSCH only in the PUCCH serving cell based on which PUCCH serving cell (primary cell or PUCCH secondary cell) is used for transmission on the PDSCH. And different PUCCH formats may be used.

Here, when more than one serving cell is set, the terminal device 1 uses the first PUCCH set by the upper layer to transmit HARQ-ACK for transmission on the PDSCH only in the PUCCH secondary cell. Resources (hereinafter also referred to as 1-1 PUCCH resources) may be used. For example, the base station apparatus 3 may transmit an upper layer signal including tenth information used for setting the 1-1st PUCCH resource.

That is, the terminal device 1 uses a first PUCCH resource (1-1 PUCCH resource) different from the first PUCCH resource used for HARQ-ACK transmission for PDSCH transmission only in the primary cell. Thus, HARQ-ACK may be transmitted for transmission on the PDSCH only in the PUCCH secondary cell. Here, for example, the different first PUCCH resource indicates a PUCCH resource that is a different resource index, a different orthogonal sequence index, and / or a different cyclic shift value than the resource index for the first PUCCH resource. May be.

Further, when more than five serving cells are set or activated, the terminal device 1 performs the first operation for transmission on the PDSCH only in the primary cell indicated by the detection of the PDCCH in the first subframe. PUCCH resources and the second PUCCH format may be used. Here, when more than five serving cells are set or activated, the terminal apparatus 1 performs the transmission on the PDSCH only in the primary cell indicated by the detection of the PDCCH in the first subframe. The 1-1 PUCCH resource and the second PUCCH format may be used.

Also, when more than five serving cells are set or activated, the terminal device 1 performs the first transmission on the PDSCH only in the PUCCH secondary cell indicated by the detection of the PDCCH in the first subframe. One PUCCH resource and a second PUCCH format may be used. Also, when more than five serving cells are set or activated, the terminal device 1 performs the first transmission on the PDSCH only in the PUCCH secondary cell indicated by the detection of the PDCCH in the first subframe. The 1-1 PUCCH resource and the second PUCCH format may be used. Here, the 1-1st PUCCH resource may be a resource of a PUCCH secondary cell.

Also, when more than five serving cells are set or activated, the terminal device 1 performs the first transmission on the PDSCH only in the PUCCH secondary cell indicated by the detection of the PDCCH in the first subframe. 4 PUCCH resources and a 5th PUCCH format may be used.

That is, when more than five serving cells are set or activated, the terminal device 1 is instructed to transmit on the PDSCH in at least one PUCCH secondary cell by detecting the PDCCH in the first subframe. For this, the fourth PUCCH resource and the fifth PUCCH format may be used.

Also, when more than five serving cells are set or activated, the terminal device 1 performs the first transmission on the PDSCH in the non-PUCCH secondary cell indicated by the detection of the PDCCH in the first subframe. 4 PUCCH resources and a 5th PUCCH format may be used.

That is, when more than five serving cells are set or activated, the terminal apparatus 1 is instructed to transmit on the PDSCH in at least one non-PUCCH secondary cell by detecting the PDCCH in the first subframe. In some cases, the fourth PUCCH resource and the fifth PUCCH format may be used.

Here, when a cell group (for example, a master cell group or a secondary cell group) related to dual connectivity is set, the terminal device 1 is instructed by detecting the PDCCH in the first subframe. In addition, the first PUCCH resource and the second PUCCH format may be used for transmission on the PDSCH only in the primary secondary cell. In the present embodiment, the secondary cell does not include a primary secondary cell. The master cell group may include one or a plurality of PUCCH cell groups. Further, the secondary cell group may include one or a plurality of PUCCH cell groups.

In addition, when a cell group related to dual connectivity is set, the terminal device 1 uses the secondary cell (PUCCH secondary cell and / or non-PUCCH secondary cell) indicated by the detection of the PDCCH in the first subframe. ), The third PUCCH resource and the fourth PUCCH format, or the fourth PUCCH resource and the fifth PUCCH format may be used.

Here, in dual connectivity, the terminal device 1 may be connected (simultaneously) to a master eNB (MeNB: Master eNB) and a secondary eNB (SeNB: Master eNB). When dual connectivity is set, two MAC entities (two （MAC entities) may be set for the terminal device 1. Here, one of the two MAC entities may indicate a MAC entity for the master cell group. The other of the two MAC entities may indicate a MAC entity for the secondary cell group. In addition, when dual connectivity is not set, one MAC entity may be set for the terminal device 1.

Here, the terminal apparatus 1 that transmits HARQ-ACK using the fourth PUCCH format sets the number of HARQ-ACK bits at least for the set number of serving cells and each set serving cell. It may be determined based on the downlink transmission mode. In addition, the terminal device 1 that transmits HARQ-ACK using the fifth PUCCH format includes at least the number of HARQ-ACK bits set or activated and the number of serving cells that are set or activated. It may be determined based on the downlink transmission mode set for.

For example, the terminal apparatus 1 has two HARQ-ACK bits for a serving cell in which a downlink transmission mode (a downlink transmission mode that supports up to two transport blocks) supporting up to two transport blocks is set. Otherwise (for example, for a serving cell with a downlink transmission mode that supports one transport block (a downlink transmission mode that supports one transport 、１blocks) set) 1 bit HARQ-ACK bit May be used.

Here, as described above, the terminal apparatus 1 may simultaneously transmit HARQ-ACK and CSI using the third PUCCH format, the fourth PUCCH format, and the fifth PUCCH format. Here, for example, the base station apparatus 3 can transmit an upper layer signal including eleventh information (simultaneousAckNackAndCQI) used to allow simultaneous transmission of HARQ-ACK and CSI. Here, the eleventh information may be used to allow simultaneous transmission (simultaneous と transmission) of HARQ-ACK and CSI using the third PUCCH format.

In addition, the base station apparatus 3 transmits an upper layer signal including the twelfth information (simultaneousAckNackAndCQI-Format3) used to allow simultaneous transmission of HARQ-ACK and CSI using the fourth PUCCH format. May be. Further, the base station apparatus 3 transmits an upper layer signal including thirteenth information (simultaneousAckNackAndCQI-Format4) used to allow simultaneous transmission of HARQ-ACK and CSI using the fifth PUCCH format. May be.

For example, the base station apparatus 3 transmits eleventh information, twelfth information, and / or thirteenth information to the terminal apparatus 1 for each of the PUCCH cell groups using a higher layer signal. May be. Moreover, the terminal device 1 receives the eleventh information, the twelfth information, and / or the thirteenth information from the base station device 3 for each of the PUCCH cell groups by using a higher layer signal. May be.

Moreover, the base station apparatus 3 uses the upper layer signal to obtain information (eleventh information, twelfth information, and / or thirteenth information) that is common to a plurality of PUCCH cell groups. You may transmit to the terminal device 1. Also, the terminal device 1 uses the upper layer signal to transmit information (eleventh information, twelfth information, and / or thirteenth information) common to a plurality of PUCCH cell groups to the base station You may receive from the station apparatus 3. FIG.

Moreover, the base station apparatus 3 transmits the eleventh information, the twelfth information, and / or the thirteenth information to the terminal apparatus 1 for each of the PUCCH serving cells using a higher layer signal. May be. Moreover, the terminal device 1 receives the eleventh information, the twelfth information, and / or the thirteenth information from the base station device 3 for each of the PUCCH serving cells using the higher layer signal. May be.

Moreover, the base station apparatus 3 uses the higher layer signal to transmit information (eleventh information, twelfth information, and / or thirteenth information) common to a plurality of PUCCH serving cells to the terminal You may transmit to the apparatus 1. Also, the terminal device 1 uses the upper layer signal to transmit information (eleventh information, twelfth information, and / or thirteenth information) common to the plurality of PUCCH serving cells to the base station You may receive from the apparatus 3. FIG.

Moreover, the base station apparatus 3 uses the higher layer signal to send eleventh information, twelfth information, and / or thirteenth information to each of the master cell group and the secondary cell group. You may transmit to the apparatus 1. Further, the terminal device 1 uses the higher layer signal to send the eleventh information, the twelfth information, and / or the thirteenth information to the base station and the master cell group and the secondary cell group, You may receive from the apparatus 3. FIG.

Here, the terminal device 1 in which one serving cell is set and the fourth PUCCH format and / or the fifth PUCCH format is not set is used in a CSI report (for example, periodic CSI) in the same subframe without PUSCH. ) And HARQ-ACK, using at least a third PUCCH format based on the condition that simultaneous transmission of HARQ-ACK and CSI is permitted based on the eleventh information, CSI multiplexed with HARQ-ACK on PUCCH may be reported. Here, HARQ-ACK and CSI may be transmitted simultaneously using the second PUCCH resource.

In addition, the terminal device 1 in which more than one serving cell is set has the eleventh information when the CSI report (for example, periodic CSI) and HARQ-ACK collide with each other in the same subframe without PUSCH. The third PUCCH format is used based at least on the condition that simultaneous transmission of HARQ-ACK and CSI is permitted based on, and that HARQ-ACK supports transmission on PDSCH only in the primary cell Then, CSI multiplexed with HARQ-ACK on PUCCH may be reported. Here, HARQ-ACK and CSI may be transmitted simultaneously using the second PUCCH resource.

Here, the fact that HARQ-ACK corresponds to transmission on the PDSCH only in the primary cell may indicate that the terminal apparatus 1 transmits HARQ-ACK for transmission on the PDSCH only in the primary cell. That is, in this case, the terminal device 1 may receive transmission on the PDSCH only in the primary cell.

In addition, the terminal device 1 in which more than one serving cell is set has the eleventh information when the CSI report (for example, periodic CSI) and HARQ-ACK collide in the same subframe without PUSCH. Based on the condition that simultaneous transmission of HARQ-ACK and CSI is allowed and HARQ-ACK corresponds to transmission on PDSCH only in the PUCCH secondary cell, using the third PUCCH format , CSI multiplexed with HARQ-ACK on PUCCH may be reported. Here, HARQ-ACK and CSI may be transmitted simultaneously using the second PUCCH resource.

Here, the fact that HARQ-ACK corresponds to transmission on the PDSCH only in the PUCCH secondary cell indicates that the terminal apparatus 1 transmits HARQ-ACK for transmission on the PDSCH only in the PUCCH secondary cell. Good. That is, in this case, the terminal device 1 may receive transmission on the PDSCH only in the PUCCH secondary cell.

Here, the terminal device 1 in which more than one serving cell is set and the fourth PUCCH format is set, the CSI report (for example, periodic CSI) and HARQ-ACK in the same subframe without PUSCH Based on the twelfth information, the simultaneous transmission of HARQ-ACK and CSI is permitted, and the HARQ-ACK corresponds to transmission on the PDSCH only in the PUCCH secondary cell. Thus, CSI multiplexed with HARQ-ACK on PUCCH may be reported using the fourth PUCCH format. Here, HARQ-ACK and CSI may be transmitted simultaneously using the third PUCCH resource.

Also, the terminal device 1 in which more than one serving cell is set and the fifth PUCCH format is set, the CSI report (for example, periodic CSI) and HARQ-ACK are transmitted in the same subframe without PUSCH. Based on the condition that, in the case of a collision, simultaneous transmission of HARQ-ACK and CSI is permitted based on the thirteenth information, and HARQ-ACK corresponds to transmission on PDSCH only in the PUCCH secondary cell. , CSI multiplexed with HARQ-ACK on PUCCH may be reported using the fifth PUCCH format. Here, HARQ-ACK and CSI may be transmitted simultaneously using the fourth PUCCH resource.

Also, the terminal device 1 in which more than one serving cell is set and the fourth PUCCH format is set, the CSI report (for example, periodic CSI) and HARQ-ACK are transmitted in the same subframe without PUSCH. Based on the condition that, in the case of a collision, simultaneous transmission of HARQ-ACK and CSI is permitted based on the twelfth information, and HARQ-ACK corresponds to transmission on PDSCH in a non-PUCCH secondary cell. , CSI multiplexed with HARQ-ACK on PUCCH may be reported using the fourth PUCCH format. For example, in the terminal device 1, the total number of bits corresponding to the uplink control information (HARQ-ACK, SR (if any), and / or CSI) in the subframe is equal to or greater than a predetermined value (for example, 22 bits). Based on the condition that it is not, CSI multiplexed with HARQ-ACK on PUCCH may be reported using the fourth PUCCH format. Here, HARQ-ACK and CSI may be transmitted simultaneously using the third PUCCH resource.

Here, the HARQ-ACK corresponds to the transmission on the PDSCH in the non-PUCCH secondary cell is that the terminal device 1 transmits the HARQ-ACK for the transmission on the PDSCH in at least one non-PUCCH secondary cell. May be shown. That is, in this case, the terminal device 1 may receive transmission on the PDSCH in at least one non-PUCCH secondary cell.

Also, the terminal device 1 in which more than one serving cell is set and the fifth PUCCH format is set, the CSI report (for example, periodic CSI) and HARQ-ACK are transmitted in the same subframe without PUSCH. Based on the condition that, in case of a collision, simultaneous transmission of HARQ-ACK and CSI is permitted based on the thirteenth information, and HARQ-ACK corresponds to transmission on PDSCH in a non-PUCCH secondary cell. , CSI multiplexed with HARQ-ACK on PUCCH may be reported using the fifth PUCCH format. For example, the terminal device 1 is based on the condition that the total number of bits corresponding to the uplink control information in the subframe is not equal to or greater than a predetermined value (for example, the number of bits transmitted using the PUCCH format 5). , CSI multiplexed with HARQ-ACK on PUCCH may be reported using the fifth PUCCH format. Here, HARQ-ACK and CSI may be transmitted simultaneously using the fourth PUCCH resource.

That is, the terminal device 1 may use the third PUCCH format when HARQ-ACK supports transmission on the PDSCH only in the primary cell. Also, the terminal device 1 may use the third PUCCH format or the fourth PUCCH format when HARQ-ACK supports transmission on the PDSCH only in the PUCCH secondary cell. Also, the terminal device 1 may use the third PUCCH format or the fifth PUCCH format when HARQ-ACK supports transmission on the PDSCH only in the PUCCH secondary cell.

That is, the terminal apparatus 1 determines whether HARQ-ACK corresponds to transmission on the PDSCH in which PUCCH serving (primary cell or PUCCH secondary cell), and performs simultaneous transmission of HARQ-ACK and CSI. Different PUCCH resources and different PUCCH formats may be used.

Here, when more than one serving cell is set, the terminal device 1 is set by the higher layer to transmit HARQ-ACK and CSI for transmission on the PDSCH only in the PUCCH secondary cell. A second PUCCH resource (hereinafter also referred to as a 2-1 PUCCH resource) may be used. For example, the base station apparatus 3 may transmit an upper layer signal including the 14th information used for setting the 2-1st PUCCH resource.

That is, the terminal device 1 uses the HARQ-ACK for transmission on the PDSCH only in the primary cell and the second PUCCH resource (second PUCCH 2-1) different from the second PUCCH resource used for CSI transmission. Resource) may be used to transmit HARQ-ACK and CSI for PDSCH transmission only in the PUCCH secondary cell. Here, for example, a different second PUCCH resource indicates a PUCCH resource that is a different resource index, a different orthogonal sequence index, and / or a different cyclic shift value than the resource index for the second PUCCH resource. May be.

In addition, the terminal device 1 in which more than five serving cells are set or activated, in the case where a CSI report (for example, periodic CSI) and HARQ-ACK collide in the same subframe without PUSCH, The third PUCCH is based at least on the condition that simultaneous transmission of HARQ-ACK and CSI is permitted based on the information of 11 and that HARQ-ACK supports transmission on the PDSCH only in the primary cell. The format may be used to report CSI multiplexed with HARQ-ACK on PUCCH. Here, HARQ-ACK and CSI may be transmitted simultaneously using the second PUCCH resource. Also, HARQ-ACK and CSI may be transmitted simultaneously using the 2-1st PUCCH resource.

In addition, the terminal device 1 in which more than five serving cells are set or activated, when the CSI report (for example, periodic CSI) and HARQ-ACK collide with each other in the same subframe without PUSCH, The third PUCCH format based at least on the condition that simultaneous transmission of HARQ-ACK and CSI is permitted based on the information of 11 and that HARQ-ACK corresponds to transmission on PDSCH only in the PUCCH secondary cell May be used to report CSI multiplexed with HARQ-ACK on PUCCH. Here, HARQ-ACK and CSI may be transmitted simultaneously using the second PUCCH resource. Also, HARQ-ACK and CSI may be transmitted simultaneously using the 2-1st PUCCH resource.

Here, the terminal apparatus 1 in which more than five serving cells are set or activated and the fourth PUCCH format is set is used for the CSI report (for example, periodic CSI) and HARQ in the same subframe without PUSCH. -In the case of collision with ACK, based on the twelfth information, simultaneous transmission of HARQ-ACK and CSI is permitted, and HARQ-ACK corresponds to transmission on PDSCH only in the PUCCH secondary cell. , Based on at least, the fourth PUCCH format may be used to report CSI multiplexed with HARQ-ACK on PUCCH. Here, HARQ-ACK and CSI may be transmitted simultaneously using the third PUCCH resource.

In addition, the terminal apparatus 1 in which more than five serving cells are set or activated and the fifth PUCCH format is set can be used in a CSI report (for example, periodic CSI) and HARQ- in the same subframe without PUSCH. In the case where ACK collides, based on the thirteenth information, simultaneous transmission of HARQ-ACK and CSI is permitted, and HARQ-ACK corresponds to transmission on PDSCH only in the PUCCH secondary cell, Based on at least, the fifth PUCCH format may be used to report CSI multiplexed with HARQ-ACK on PUCCH. Here, HARQ-ACK and CSI may be transmitted simultaneously using the fourth PUCCH resource.

In addition, the terminal apparatus 1 in which more than five serving cells are set or activated and the fourth PUCCH format is set can be used in a CSI report (for example, periodic CSI) and HARQ- in the same subframe without PUSCH. In the case where ACK collides, HARQ-ACK and CSI simultaneous transmission is permitted based on the twelfth information, and HARQ-ACK corresponds to transmission on PDSCH in a non-PUCCH secondary cell. Based on at least, the fourth PUCCH format may be used to report CSI multiplexed with HARQ-ACK on PUCCH. For example, the terminal device 1 uses the fifth PUCCH format based on the condition that the total number of bits corresponding to the uplink control information in the subframe is not equal to or greater than a predetermined value (for example, 22 bits). , CSI multiplexed with HARQ-ACK on PUCCH may be reported. Here, HARQ-ACK and CSI may be transmitted simultaneously using the third PUCCH resource.

In addition, the terminal apparatus 1 in which more than five serving cells are set or activated and the fifth PUCCH format is set can be used in a CSI report (for example, periodic CSI) and HARQ- in the same subframe without PUSCH. In the case of collision with ACK, based on the thirteenth information, simultaneous transmission of HARQ-ACK and CSI is permitted, and HARQ-ACK corresponds to transmission on PDSCH in a non-PUCCH secondary cell, Based on at least, the fifth PUCCH format may be used to report CSI multiplexed with HARQ-ACK on PUCCH. For example, the terminal device 1 is based on the condition that the total number of bits corresponding to the uplink control information in the subframe is not equal to or greater than a predetermined value (for example, the number of bits transmitted using the PUCCH format 5). , CSI multiplexed with HARQ-ACK on PUCCH may be reported using the fifth PUCCH format. Here, HARQ-ACK and CSI may be transmitted simultaneously using the fourth PUCCH resource.

As described above, the terminal device 1 may transmit the uplink control information in the PUCCH cell group set for each of the PUCCH formats. That is, in the above description, the HARQ-ACK transmitted together with CSI using the third PUCCH format is the HARQ-ACK for the PUCCH cell group configured for the third PUCCH format (in the third PUCCH format). HARQ-ACK for transmission on the PDSCH in the PUCCH cell group set for the PUCCH cell group.

In the above description, the HARQ-ACK transmitted together with the CSI using the fourth PUCCH format is the HARQ-ACK for the PUCCH cell group set for the fourth PUCCH format (in the fourth PUCCH format). HARQ-ACK for transmission on the PDSCH in the PUCCH cell group set for the PUCCH cell group.

In the above description, the HARQ-ACK transmitted together with the CSI using the fifth PUCCH format is the HARQ-ACK for the PUCCH cell group set for the fifth PUCCH format (in the fifth PUCCH format). HARQ-ACK for transmission on the PDSCH in the PUCCH cell group set for the PUCCH cell group.

That is, the terminal apparatus 1 may transmit HARQ-ACK for different PUCCH cell groups together with CSI according to which serving cell corresponds to transmission of PDSCH in HARQ-ACK.

Also, in the same PUCCH serving cell, when the CSI report and HARQ-ACK collide in the same subframe without PUSCH, the third PUCCH format, the fourth PUCCH format, and / or the fifth Both CSI and HARQ-ACK may be transmitted using the PUCCH format. Here, the PUCCH cell group corresponding to HARQ-ACK and the PUCCH cell group corresponding to CSI may be different. For example, the PUCCH cell group corresponding to HARQ-ACK may be a PUCCH cell group configured for the second PUCCH format, the fourth PUCCH format, and / or the fifth PUCCH format. For example, the PUCCH cell group corresponding to CSI may be a PUCCH cell group configured for the second PUCCH format.

Also, in the same subframe without PUSCH, when a CSI report in a certain PUCCH serving cell and a HARQ-ACK in a PUCCH serving cell different from the certain PUCCH serving cell collide, the CSI in the certain PUCCH serving cell, HARQ-ACK in a PUCCH serving cell different from a certain PUCCH serving cell may be transmitted together. Here, the PUCCH cell group to which HARQ-ACK corresponds and the PUCCH cell group to which CSI corresponds may be different. Here, the CSI may be transmitted using the third PUCCH format. Moreover, HARQ-ACK may be transmitted using the second PUCCH format, the fourth PUCCH format, and / or the fifth PUCCH format.

Also, in the same subframe without PUSCH, when a CSI report in a certain PUCCH serving cell collides with HARQ-ACK in a PUCCH serving cell different from the certain PUCCH serving cell, a PUCCH serving cell different from the certain PUCCH serving cell Only the HARQ-ACK may be transmitted. That is, CSI in the certain PUCCH serving cell may be dropped. Here, the PUCCH cell group to which HARQ-ACK corresponds and the PUCCH cell group to which CSI corresponds may be different. Here, CSI and HARQ-ACK may be transmitted using the second PUCCH format, the fourth PUCCH format, and / or the fifth PUCCH format.

In addition, the base station apparatus 3 uses information (simultaneousPUCCH-) for permitting transmission of HARQ-ACK in a certain serving cell and CSI report in a serving cell different from the certain serving cell in one subframe not involving PUSCH. PUCCH) may be transmitted as an upper layer signal. That is, the base station apparatus 3 may transmit information used to permit simultaneous transmission of HARQ-ACK on the PUCCH in a certain serving cell and CSI report on the PUCCH in a serving cell different from the certain serving cell. .

FIG. 5 is a diagram for explaining an aperiodic CSI report in the present embodiment. FIG. 5 (a) shows a description of the 2-bit CSI request field for the PDCCH along with the DCI format for the uplink in the user equipment specific search space. FIG. 5B shows a description of the 3-bit CSI request field for the PDCCH accompanying the DCI format for the uplink in the user equipment specific search space.

Hereinafter, the operation described using FIG. 5 may be performed for each PUCCH cell group. That is, the base station device 3 and the terminal device 1 may perform the operation described with reference to FIG. 5 in one PUCCH cell group. Further, in the description of FIG. 5, setting more than one serving cell may mean setting more than one and not more than five serving cells.

Here, the base station apparatus 3 transmits information used for requesting CSI transmission (also referred to as CSI request) via PDCCH, thereby transmitting CSI using PUSCH (also referred to as aperiodic CSI report). May be triggered. For example, the CSI request may be included in the DCI format for the uplink. If the CSI request field is set to trigger a report based on the decoding of the DCI format for the uplink for a certain serving cell in subframe n, the terminal device 1 will be in the certain serving cell in subframe n + k. , Aperiodic CSI reporting may be performed using PUSCH.

Here, if the size of the CSI request field is 1 bit, an aperiodic CSI report may be triggered for a serving cell. Here, being triggered for a serving cell with an aperiodic CSI report means that an aperiodic CSI report is triggered for a serving cell scheduled for PUSCH by using a DCI format including a CSI request. Is shown. That is, when the size of the CSI request field is 1 bit, the terminal device 1 may report the CSI for the downlink component carrier corresponding to the uplink component carrier scheduled for PUSCH.

Also, if the size of the CSI request field is 2 bits, the aperiodic CSI report may be triggered based on a value corresponding to aperiodic CSI reporting. For example, when the value of the CSI request field is “00”, the aperiodic CSI report may not be triggered. If the value of the CSI request field is “01”, an aperiodic CSI report may be triggered for a serving cell. In addition, when the value of the CSI request field is “10”, the aperiodic CSI report indicates that the first set of one or more serving cells set by the upper layer (1 ^st set of one or more serving cells). ) May be triggered. In addition, when the value of the CSI request field is “11”, the aperiodic CSI report is a second set of one or more serving cells (1 ^st set of one or more serving cells) set by the upper layer. ) May be triggered.

For example, the base station apparatus 3 uses information (also referred to as trigger1-r10) used to configure a first set of one or more serving cells, and a second set of one or more serving cells. An upper layer signal including information (also referred to as “trigger2-r10”) used for setting the signal may be transmitted. Here, the information used to set the first set (trigger1-r10) and the information used to set the second set (trigger2-r10) are the fifteenth information (aperiodicCSI-Trigger). (also referred to as -r10). That is, the fifteenth information may indicate to which serving cell the aperiodic CSI report is triggered when the aperiodic CSI report is triggered by the value of the 2-bit CSI request field. indicate for which serving cell (s) the aperiodic CSI report is triggered in a case that the aperiodic CSI report is trigger by a value of 2-bit CSI request field).

The terminal device 1 may execute an aperiodic CSI report using PUSCH based on the fifteenth information and the value of the CSI request field.

Also, if the size of the CSI request field is 3 bits, the aperiodic CSI report may be triggered based on a value corresponding to aperiodic CSI reporting. That is, when the value of the CSI request field is “000”, the aperiodic CSI report may not be triggered. If the value of the CSI request field is “001”, an aperiodic CSI report may be triggered for a serving cell. In addition, when the value of the CSI request field is “010”, the aperiodic CSI report indicates that the first set of one or more serving cells set by the upper layer (1 ^st set of one or more serving cells). ) May be triggered. In the case of the value of the CSI request field is "011", the aperiodic CSI report, a second set of one or more serving cells that are set by higher layers ^{(2 nd set of one or more} serving cells ) May be triggered. Hereinafter, similarly, based on the value of the CSI request field, it may be indicated which acyclic CSI report for which serving cell is triggered.

For example, the base station apparatus 3 is information used to set the first set (also referred to as trigger1-r13) and information used to set the second set (also referred to as trigger2-r13). ), Information used to set the third set (also referred to as trigger3-r13), information used to set the fourth set (also referred to as trigger4-r13), fifth set To set the information (also referred to as trigger5-r13), to set the sixth set (also referred to as trigger6-r13), and to set the seventh set An upper layer signal including information (also referred to as trigger7-r13) used for the transmission may be transmitted.

Also, information used to set the first set (trigger1-r13), information used to set the second set (trigger2-r13), and information used to set the third set (Trigger3-r13), information used to set the fourth set (trigger4-r13), information used to set the fifth set (trigger5-r13), to set the sixth set Information (trigger6-r13) and information used to set the seventh set (trigger7-r13) are included in the sixteenth information (also called aperiodicCSI-Trigger-r13) Also good. That is, the sixteenth information may indicate to which serving cell the aperiodic CSI report is triggered when the aperiodic CSI report is triggered by the value of the 3-bit CSI request field. indicate for which serving cell (s) the aperiodic CSI report is triggered in a case that the aperiodic CSI report is trigger by a value of 3-bit CSI request field).

That is, the terminal device 1 may execute an aperiodic CSI report using PUSCH based on the sixteenth information and the value of the CSI request field.

Here, the base station apparatus 3 may transmit the fifteenth information and / or the sixteenth information to the terminal apparatus 1 for each of the serving cells using a higher layer signal. Further, the terminal device 1 may receive the fifteenth information and / or the sixteenth information from the base station device 3 for each of the serving cells using a higher layer signal. That is, the first set to the seventh set may be set for each serving cell with an uplink resource (uplink component carrier).

Also, each of the first to seventh sets may include up to 5 serving cells.

Here, the maximum number of serving cells that each of the first set and the second set based on the fifteenth information can include, and each of the first set to the seventh set based on the sixteenth information is The maximum number of serving cells that can be included may vary.

Also, the terminal device 1 may transmit information regarding the maximum number of serving cells that can be included in each of the first set and the second set based on the fifteenth information to the base station device 3. In addition, the terminal device 1 may transmit information on the maximum number of serving cells that can be included in each of the first to seventh sets based on the sixteenth information to the base station device 3.

Also, the maximum number of serving cells each of the first set and the second set based on the fifteenth information can include, and each of the first set to the seventh set based on the sixteenth information includes The maximum number of serving cells that can be the same.

In addition, the terminal device 1 transmits information on the maximum number of serving cells that can be included in each of the first set to the seventh set based on the fifteenth information and / or the sixteenth information, to the base station device 3 may be transmitted.

Here, different tables may be defined for the case where the size of the CSI request field is 2 bits and the size of the CSI request field is 3 bits. Further, one common table may be defined for the case where the size of the CSI request field is 2 bits and the size of the CSI request field is 3 bits.

Also, information (trigger1-r10) used to set the first set may be used as information (trigger1-r13) used to set the first set. Further, information (trigger2-r10) used to set the second set may be used as information (trigger2-r13) used to set the second set. That is, the serving cell in which the aperiodic CSI report is triggered by any value in the 2-bit size CSI request field and the aperiodic CSI report is triggered by any value in the 3-bit size CSI request field. The serving cells may be the same (common).

Here, the size of the CSI request field may be determined based on at least the number of configured serving cells (downlink cells) and / or the search space to which the DCI format is mapped. Also, the size of the CSI request field may be determined based on at least the number of activated serving cells (downlink cells) and / or a search space to which the DCI format is mapped.

For example, when one serving cell is set for the terminal device 1, a 1-bit field may be applied as the size of the CSI request field (for the CSI request). When the DCI format is mapped to the common search space, a 1-bit field may be applied as the size of the CSI request field. For example, the terminal device 1 in which one serving cell is set may assume that the size of the CSI request field is 1 bit. When the DCI format is detected (received) in the common search space, it may be assumed that the size of the CSI request field is 1 bit.

Also, when more than one serving cell is set for the terminal device 1 and the DCI format is mapped to the user device specific search space, a 2-bit field is applied as the size of the CSI request field. May be. As described above, the user equipment specific search space may be provided at least by the C-RNTI. For example, the terminal device 1 in which more than one serving cell is set may assume that the size of the CSI request field is 2 bits when the DCI format is detected in the user device specific search space.

Also, if more than five serving cells are configured or activated and the DCI format is mapped to the user equipment specific search space, a 3 bit field may be applied as the size of the CSI request field. . For example, the terminal device 1 in which more than five serving cells are set or activated may assume that the size of the CSI request field is 3 bits when the DCI format is detected in the user device specific search space. Good.

Also, when the PUCCH cell group is set and the DCI format is mapped to the user equipment specific search space, a 3-bit field may be applied as the size of the CSI request field. For example, the terminal device 1 in which the PUCCH cell group is set may assume that the size of the CSI request field is 3 bits when the DCI format is detected in the user device specific search space.

That is, when more than one PUCCH cell group is set and the DCI format is mapped to the user equipment specific search space, a 3-bit field may be applied as the size of the CSI request field. For example, the terminal device 1 in which more than one PUCCH cell group is set may assume that the size of the CSI request field is 3 bits when the DCI format is detected in the user device specific search space.

That is, when the PUCCH (PUCCH resource) is set in the secondary cell and the DCI format is mapped to the user equipment specific search space, a 3-bit field may be applied as the size of the CSI request field. For example, the terminal device 1 in which the PUCCH (PUCCH resource) is set in the secondary cell may assume that the size of the CSI request field is 3 bits when the DCI format is detected in the user device specific search space. .

As described above, the base station device 3 and the terminal device 1 may perform the above-described operation in one PUCCH cell group. Here, one PUCCH cell group is a PUCCH cell group to which a serving cell scheduled for PUSCH belongs by using a DCI format (that is, a DCI format including a CSI request, hereinafter also referred to as a corresponding DCI format). .

That is, for example, when one serving cell is set in the PUCCH cell group to which the serving cell scheduled for PUSCH belongs by using the corresponding DCI format for the terminal device 1, the size of the CSI request field is 1 A bit field may be applied. When the corresponding DCI format is mapped to the common search space, a 1-bit field may be applied as the size of the CSI request field.

Also, more than one serving cell is set in the PUCCH cell group to which the serving cell scheduled for PUSCH belongs by using the corresponding DCI format for the terminal device 1, and the corresponding DCI format is set to the user equipment specific. When mapped to the search space, a 2-bit field may be applied as the size of the CSI request field.

Also, more than five serving cells are set in the PUCCH cell group to which the serving cell scheduled for PUSCH belongs by using the corresponding DCI format for the terminal apparatus 1, and the corresponding DCI format is user equipment specific. When mapped to the search space, a 3-bit field may be applied as the size of the CSI request field.

That is, for example, when the first PUCCH cell group and the second PUCCH cell group are set, one serving cell is set in the first PUCCH cell group, and the user equipment specific search space and / or common search is set. If the PUSCH in the serving cell belonging to the first PUCCH cell group is scheduled by using a space mapped DCI format, a 1-bit field may be applied as the size of the CSI request field.

Also, when the first PUCCH cell group and the second PUCCH cell group are set, one serving cell is set in the second PUCCH cell group, and the user equipment specific search space and / or the common search space are set. If the PUSCH in the serving cell belonging to the second PUCCH cell group is scheduled by using the mapped DCI format, a 1-bit field may be applied as the size of the CSI request field.

Also, for example, when the first PUCCH cell group and the second PUCCH cell group are set, more than one serving cell is set in the first PUCCH cell group, and is mapped to the user equipment specific search space If the PUSCH in the serving cell belonging to the first PUCCH cell group is scheduled by using the determined DCI format, a 2-bit field may be applied as the size of the CSI request field.

In addition, when the first PUCCH cell group and the second PUCCH cell group are set, more than one serving cell is set in the second PUCCH cell group and mapped to the user equipment specific search space If PUSCH in the serving cell belonging to the second PUCCH cell group is scheduled by using the DCI format, a 2-bit field may be applied as the size of the CSI request field.

Also, for example, when the first PUCCH cell group and the second PUCCH cell group are set, more than five serving cells are set or activated in the first PUCCH cell group, and the user equipment specific search is performed. If PUSCH in the serving cell belonging to the first PUCCH cell group is scheduled by using a space mapped DCI format, a 3-bit field may be applied as the size of the CSI request field.

In addition, when the first PUCCH cell group and the second PUCCH cell group are set, more than five serving cells are set or activated in the second PUCCH cell group, and the user equipment specific search space is set. If PUSCH in the serving cell belonging to the second PUCCH cell group is scheduled by using the mapped DCI format, a 3-bit field may be applied as the size of the CSI request field.

That is, when one serving cell is set in the corresponding PUCCH cell group for the terminal device 1 or when the corresponding DCI format is mapped to the common search space, the size of the CSI request field is 1 A bit field may be applied. In addition, when more than one serving cell is set in the corresponding PUCCH cell group for the terminal apparatus 1 and the corresponding DCI format is mapped to the user apparatus specific search space, the size of the CSI request field As an example, a 2-bit field may be applied. In addition, when more than five serving cells are set in the corresponding PUCCH cell group for the terminal apparatus 1 and the corresponding DCI format is mapped to the user apparatus specific search space, the size of the CSI request field As an example, a 3-bit field may be applied.

Here, the corresponding PUCCH cell group is a PUCCH cell group to which a serving cell scheduled for PUSCH belongs by using a DCI format (that is, a DCI format including a CSI request). The corresponding DCI format is a DCI format that requests an aperiodic CSI report (that is, a DCI format including a CSI request).

Here, in this embodiment, the case where the size of the CSI request field is 1 bit, 2 bits, and 3 bits is described as an example, but the size of the CSI request field may be a number of bits larger than 3 bits. Of course.

As described above, the base station device 3 and the terminal device 1 may transmit and receive periodic CSI on the PUCCH in a certain subframe. Moreover, the base station apparatus 3 and the terminal device 1 may transmit / receive aperiodic CSI by PUSCH in a certain sub-frame. Here, when both the periodic CSI report and the aperiodic CSI report occur in the same subframe, the terminal device 1 may transmit only the aperiodic CSI report in the subframe. (In case both periodic and aperiodic CSI reporting would occur in the same subframe, the UE shall only transmit the aperiodic CSI report in that subframe). That is, when both periodic CSI reporting and aperiodic CSI reporting occur in the same subframe, the terminal device 1 may drop the periodic CSI report in the subframe.

Here, when both the periodic CSI report for a certain saving cell and the aperiodic CSI report for a serving cell different from the certain serving cell occur in the same subframe, the terminal device 1 Both a periodic CSI report and an aperiodic CSI report may be transmitted. That is, when a periodic CSI report and an aperiodic CSI report for different serving cells are generated in the same subframe, the terminal device 1 uses both the periodic CSI report and the aperiodic CSI report in the subframe. May be sent.

That is, when both the periodic CSI report for a certain saving cell and the aperiodic CSI report for the certain serving cell occur in the same subframe, the terminal apparatus 1 Only the CSI report may be transmitted. That is, when a periodic CSI report and an aperiodic CSI report for the same serving cell are generated in the same subframe, the terminal apparatus 1 may transmit only the aperiodic CSI report in the subframe. Good. That is, when the periodic CSI report and the aperiodic CSI report for the same serving cell are generated in the same subframe, the terminal device 1 may drop the periodic CSI report in the subframe.

FIG. 6 is a diagram illustrating an instruction to transmit only uplink control information in the present embodiment.

Hereinafter, the operation described with reference to FIG. 6 may be performed for each PUCCH cell group. That is, the base station device 3 and the terminal device 1 may perform the operation described with reference to FIG. 6 in one PUCCH cell group. In addition, in the description of FIG. 6, setting more than one serving cell may mean setting more than one and not more than five serving cells.

Also, in the description of FIG. 6, being set to trigger an aperiodic CSI report for more than one serving cell is set to trigger an aperiodic CSI report for more than one serving cell and less than five. It may be set. Also, FIG. 5 (a) and FIG. 5 (b) corresponds to FIGS. 5 (a) and 5 (b).

Here, the base station apparatus 3 may instruct the transmission of only uplink control information using PUSCH. That is, the base station apparatus 3 may instruct transmission of uplink control information (uplink control information on PUSCH without UL-SCH data) on the PUSCH without uplink data (UL-SCH data). That is, when instructed by the base station apparatus 3, only the uplink control information without the transport block for the UL-SCH (there is no transport block for UL-SCH and only uplink control information) is transmitted by the terminal device 1. May be. Here, transmission of only uplink control information using PUSCH may be included in the aperiodic CSI report.

Here, for example, transmission of only uplink control information using PUSCH is at least also referred to as a CSI request field value (a value of the “CSI request” bit field), MCS index (modulation and coding scheme index, IMCS). And / or the number of allocated physical resource blocks (the number-of-allocated-PRBs- (physical-resource-blocks), also referred to as NPRB). Here, the value of the CSI request field, the MCS index, and the number of physical resource blocks may be included in the DCI format (eg, DCI format 0, DCI format 4) for the uplink.

As described above, the value of the CSI request field may be a value set in the field mapped to the CSI request (information used to request transmission of CSI) included in the DCI format for the uplink. . The MCS index is used to indicate information (MCS and / or redundancy version) about MCS and / or redundancy version (ModulationModand coding schemeand / or redundancy version) included in the DCI format for the uplink. It may be a value set in a field mapped to information). In addition, the number of physical resource blocks is mapped to information on resource block allocation and / or hopping (Resource block assignment and / or hopping resource allocation) included in the DCI format for uplink (information related to resource block allocation) It may be based on the value set in the field. Here, these pieces of information are information on the PUSCH.

Hereinafter, since the size of the CSI request field has been described above, its description is omitted. That is, the size of the CSI request field in the following description may be indicated (determined) by the above-described method.

For example, DCI format 0 is used, the MCS index is 29, the CSI request field (size of the CSI request field) is 1 bit, set to trigger an aperiodic CSI report, and the number of physical resource blocks is 4. By using at least the following condition, transmission of only uplink control information using PUSCH may be instructed.

Also, DCI format 0 is used, the MCS index is 29, the CSI request field is 2 bits, set to trigger an aperiodic CSI report for one serving cell, and the number of physical resource blocks is 4 or less May be instructed to transmit only uplink control information using PUSCH.

Also, DCI format 0 is used, the MCS index is 29, the CSI request field is 2 bits, set to trigger an aperiodic CSI report for more than one serving cell, and the number of physical resource blocks is 20 By using at least the following condition, transmission of only uplink control information using PUSCH may be instructed.

Also, DCI format 0 is used, the MCS index is 29, the CSI request field is 3 bits, set to trigger an aperiodic CSI report for one serving cell, and the number of physical resource blocks is 4 or less May be instructed to transmit only uplink control information using PUSCH.

Also, DCI format 0 is used, the MCS index is 29, the CSI request field is 3 bits, set to trigger an aperiodic CSI report for more than one serving cell, and the number of physical resource blocks is 20 By using at least the following condition, transmission of only uplink control information using PUSCH may be instructed.

It also uses at least the condition that DCI format 0 is used, the MCS index is 29, the CSI request field is 3 bits and is set to trigger an aperiodic CSI report for more than 5 serving cells. Thus, transmission of only uplink control information using PUSCH may be instructed. That is, when an aperiodic CSI report for more than 5 serving cells is triggered, the number of physical resource blocks is not included as a condition for instructing transmission of uplink control information using PUSCH. Also good. That is, any number of physical resource blocks may be set. That is, the number of physical resource blocks may not be limited.

Also, DCI format 0 is used, the MCS index is 29, the CSI request field is 2 bits, set to trigger an aperiodic CSI report for more than 5 serving cells, and the number of physical resource blocks is predetermined. The transmission of only uplink control information using PUSCH may be instructed by using at least the condition that it is equal to or less than the number of.

Also, DCI format 0 is used, the MCS index is 29, the CSI request field is 3 bits, set to trigger an aperiodic CSI report for more than 5 serving cells, and the number of physical resource blocks is predetermined. The transmission of only uplink control information using PUSCH may be instructed by using at least the condition that it is equal to or less than the number of.

That is, the PUSCH is used by using at least the conditions that DCI format 0 is used, the MCS index is 29, the CSI request field is 2 bits, and the number of physical resource blocks is equal to or less than a predetermined number. May be instructed to transmit only the uplink control information.

In addition, the PUSCH is used by using at least the conditions that DCI format 0 is used, the MCS index is 29, the CSI request field is 3 bits, and the number of physical resource blocks is a predetermined number or less. May be instructed to transmit only the uplink control information.

Here, the predetermined number is defined by a specification or the like, and may be a number known in the base station device 3 and the terminal device 1. That is, the predetermined number may be a value other than 4 and 20, which is defined by a specification or the like and is a known number in the base station device 3 and the terminal device 1. The predetermined number may be defined as a number larger than 20 (the number of physical resource blocks larger than 20). For example, the predetermined number may be “0”. In this case, transmission of only uplink control information may be transmitted using a PUSCH resource set by an upper layer. For example, the base station apparatus 3 may transmit an upper layer signal including information used for setting a PUSCH resource for transmitting only uplink control information.

Further, the predetermined number may be set by the base station device 3. For example, the base station apparatus 3 may transmit an upper layer signal (or DCI format) including information used for instructing (determining or calculating) a predetermined number. For example, the predetermined number may be indicated based on the number of serving cells configured and / or activated. That is, the predetermined number may be indicated based on the information used for setting the serving cell and / or the information used for activating the serving cell described above.

Further, the predetermined number may be instructed based on information used to instruct the number of CSI simultaneously measured by the terminal device 1, which will be described later. Here, information used to indicate the number of CSIs simultaneously measured by the terminal device 1 is transmitted from the base station device 3 to the terminal device 1. Also, the predetermined number may be indicated based on information used to indicate the number of CSI processes. That is, the predetermined number may be indicated based on information related to CSI (transmission of CSI).

For example, the predetermined number is indicated (determined, defined) based on the information (the fifteenth information and / or the sixteenth information) indicating the serving cell to which the aperiodic CSI report is triggered as described above. ). That is, the predetermined number is the information (trigger1-r10) used to configure the first set of one or more serving cells included in the fifteenth information described above, and / or one or The indication may be based on information (trigger2-r10) used to configure the second set of serving cells.

In addition, the predetermined number is information (trigger1-r13) used to set the first set of one or more serving cells included in the sixteenth information described above, and one or more serving cells Information used to configure the second set (trigger2-r13) Information used to configure the third set of one or more serving cells (trigger3-r13), one or more of the serving cells Information used to configure the fourth set (trigger4-r13) Information used to configure the fifth set of one or more serving cells (trigger5-r13), one or more of the serving cells Information used to configure the sixth set (trigger6-r13) and / or used to configure the seventh set of one or more serving cells It may be indicated on the basis of information (trigger7-r13).

For example, the base station apparatus 3 may indicate the serving cell in which the aperiodic CSI report is triggered using each piece of information included in the fifteenth information using a bitmap. For example, among the 8 serving cells, the acyclic CSI report for which serving cell is triggered is determined by using an 8-bit bitmap (the bit corresponding to the serving cell for which the aperiodic CSI report is triggered is “ May be indicated by being set to 1 ″).

Similarly, the base station apparatus 3 may indicate the serving cell in which the aperiodic CSI report is triggered using each piece of information included in the sixteenth information using the bitmap. For example, among the 32 serving cells, the serving cell for which the aperiodic CSI report is triggered is determined by using a 32-bit bitmap (the bit corresponding to the serving cell for which the aperiodic CSI report is triggered is “ May be indicated by being set to 1 ″).

For example, the predetermined value may be indicated and indicated based on the number of serving cells in which the aperiodic CSI report is triggered. Also, for example, the predetermined value may be a value calculated by multiplying the number of serving cells for which an aperiodic CSI report is triggered by 4. That is, the predetermined value may be a value calculated by multiplying the number of bits set to “1” (total number) by 4 in the above-described bitmap.

That is, for example, when the value of the 2-bit CSI request field is “10”, an aperiodic CSI report for three serving cells is generated according to information used to configure the first set of one or more serving cells. If triggered, the predetermined value may be 12 (3 × 4). Also, when the value of the 2-bit CSI request field is “11”, an aperiodic CSI report for five serving cells is triggered by information used to configure the second set of one or more serving cells. The predetermined value may be 20 (5 × 4). In these cases, the predetermined value is defined by the above-described specification or the like, and may be a known number (predetermined number) in the base station device 3 and the terminal device 1.

Also, for example, when the value of the 3-bit CSI request field is “010”, an aperiodic CSI report for 12 serving cells is generated according to information used to configure the first set of one or more serving cells. If triggered, the predetermined value may be 48 (12 × 4). Also, when the value of the 3-bit CSI request field is “011”, an aperiodic CSI report for 20 serving cells is triggered by information used to configure the second set of one or more serving cells. The predetermined value may be 80 (20 × 4). Hereinafter, similarly, the predetermined value is indicated (determined or defined) based on the value of the CSI request field and the number of serving cells for which the aperiodic CSI report corresponding to the value of the CSI request field is triggered. May be. In these cases, the predetermined value is defined by the above-described specification or the like, and may be a known number (predetermined number) in the base station device 3 and the terminal device 1.

Here, for example, when the value of the 2-bit CSI request field and the number of serving cells triggered by the aperiodic CSI report corresponding to the value of the CSI request field are 1, the predetermined value is 4 It may be. When the value of the 3-bit CSI request field and the number of serving cells triggered by the aperiodic CSI report corresponding to the value of the CSI request field are 1, the predetermined value is 4. Also good. That is, if an aperiodic CSI report for one serving cell is triggered based on the value of the 2-bit CSI request field and the fifteenth information (each of the information included in the fifteenth information), predetermined The value of may be 4. Also, if an aperiodic CSI report for one serving cell is triggered based on the value of the 3-bit CSI request field and the 16th information (each of the information included in the 16th information), a predetermined The value of may be 4.

Also, if the value of the 2-bit CSI request field and the number of serving cells for which the aperiodic CSI report corresponding to the value of the CSI request field is triggered are more than one (more than one, In the case of 5 or less), the predetermined value may be 20. Also, when the number of serving cells for which the value of the 3-bit CSI request field and the aperiodic CSI report corresponding to the value of the CSI request field are triggered is more than one (more than one, In the case of 5 or less), the predetermined value may be 20. That is, based on the value of the 2-bit CSI request field and the fifteenth information (each of the information included in the fifteenth information), more than one serving cell (more than one and less than or equal to five) If the aperiodic CSI report for the serving cell) is triggered, the predetermined value may be 20. Also, based on the value of the 3-bit CSI request field and the sixteenth information (each of the information included in the sixteenth information), more than one serving cell (more than one and less than or equal to five) If the aperiodic CSI report for the serving cell) is triggered, the predetermined value may be 20.

In addition, when the number of serving cells triggered by the value of the 2-bit CSI request field and the aperiodic CSI report corresponding to the value of the CSI request field is more than 5, the predetermined value is , The value of the CSI request field and the number of serving cells for which an aperiodic CSI report corresponding to the value of the CSI request field is triggered may be indicated. That is, when the value of the 2-bit CSI request field and the number of serving cells triggered by the aperiodic CSI report corresponding to the value of the CSI request field are more than 5, the predetermined value is The value calculated by multiplying the number of serving cells triggered by the aperiodic CSI report corresponding to the value of the CSI request field by 4 may be used. That is, in this case, the predetermined value is defined by the above-described specification or the like, and may be a known number (predetermined number) in the base station device 3 and the terminal device 1.

In addition, when the number of serving cells triggered by the value of the 3-bit CSI request field and the aperiodic CSI report corresponding to the value of the CSI request field is more than 5, the predetermined value is , The value of the CSI request field and the number of serving cells for which an aperiodic CSI report corresponding to the value of the CSI request field is triggered may be indicated. That is, when the value of the 3-bit CSI request field and the number of serving cells triggered by the aperiodic CSI report corresponding to the value of the CSI request field are more than five, the predetermined value is The value calculated by multiplying the number of serving cells triggered by the aperiodic CSI report corresponding to the value of the CSI request field by 4 may be used. That is, in this case, the predetermined value is defined by the above-described specification or the like, and may be a known number (predetermined number) in the base station device 3 and the terminal device 1.

That is, when an aperiodic CSI report for more than five serving cells is triggered based on the value of the 2-bit CSI request field and the fifteenth information (each of the information included in the fifteenth information) The predetermined value may be indicated based on the value of the CSI request field and the number of serving cells for which an aperiodic CSI report corresponding to the value of the CSI request field is triggered. Also, when an aperiodic CSI report for more than five serving cells is triggered based on the value of the 3-bit CSI request field and the sixteenth information (each of the information included in the sixteenth information) The predetermined value may be indicated based on the value of the CSI request field and the number of serving cells for which an aperiodic CSI report corresponding to the value of the CSI request field is triggered.

Here, based on the value of the 2-bit CSI request field and the fifteenth information (each of the information included in the fifteenth information), an aperiodic CSI report for more than five serving cells is triggered. In some cases, the predetermined value may be infinite. Also, when an aperiodic CSI report for more than five serving cells is triggered based on the value of the 3-bit CSI request field and the sixteenth information (each of the information included in the sixteenth information) In this case, the predetermined value may be infinite. Here, the fact that the predetermined value is infinite may be the same as that the predetermined value is not used because of an instruction to transmit only uplink control information using PUSCH.

Also, DCI format 4 is used, one transport block (TB: Transport block) is validated, the MCS index for the validated transport block is 29, the number of transmission layers is 1, By using at least the condition that the CSI request field is 1 bit and set to trigger an aperiodic CSI report and the number of physical resource blocks is 4 or less, only uplink control information using PUSCH Transmission may be instructed.

Here, the number of transmission layers is set in a field mapped to information included in DCI format 4 (information used to indicate the number of transmission layers, also referred to as Precoding information and number of layers). It may be based on the value. As described above, DCI format 4 relates to information used to request transmission of CSI, information used to indicate MCS and / or redundancy version, and / or resource block allocation. Contains information. Here, these pieces of information are information on the PUSCH.

Also, DCI format 4 is used, one transport block is validated, the MCS index for the validated transport block is 29, the number of transmission layers is 1, and the CSI request field is 2 bits. And is set to trigger an aperiodic CSI report for one serving cell, and at least using the condition that the number of physical resource blocks is 4 or less, indicates transmission of only uplink control information using PUSCH. May be.

Also, DCI format 4 is used, one transport block is validated, the MCS index for the validated transport block is 29, the number of transmission layers is 1, and the CSI request field is 2 bits. And is set to trigger an aperiodic CSI report for more than one serving cell, and at least using the condition that the number of physical resource blocks is 20 or less, only uplink control information using PUSCH Transmission may be instructed.

Also, DCI format 4 is used, one transport block is validated, the MCS index for the validated transport block is 29, the number of transmission layers is 1, and the CSI request field is 3 bits. And is set to trigger an aperiodic CSI report for one serving cell, and at least using the condition that the number of physical resource blocks is 4 or less, indicates transmission of only uplink control information using PUSCH. May be.

Also, DCI format 4 is used, one transport block is validated, the MCS index for the validated transport block is 29, the number of transmission layers is 1, and the CSI request field is 3 bits. And is set to trigger an aperiodic CSI report for more than one serving cell, and at least using the condition that the number of physical resource blocks is 20 or less, only uplink control information using PUSCH Transmission may be instructed.

Also, DCI format 4 is used, one transport block is validated, the MCS index for the validated transport block is 29, the number of transmission layers is 1, and the CSI request field is 3 bits. By using at least the condition that it is set to trigger an aperiodic CSI report for more than five serving cells, transmission of only uplink control information using PUSCH may be instructed.

Also, DCI format 4 is used, one transport block is validated, the MCS index for the validated transport block is 29, the number of transmission layers is 1, and the CSI request field is 3 bits. And uplink control using PUSCH by using at least the condition that it is set to trigger an aperiodic CSI report for more than 5 serving cells and the number of physical resource blocks is less than or equal to a predetermined number Transmission of only information may be instructed. Here, since the predetermined number has been described above, the description thereof is omitted.

Here, in CSI reporting (aperiodic CSI reporting and / or periodic CSI reporting), the sum of the number of CSIs that have been triggered but not reported and the number of CSIs that have been newly triggered is the terminal device 1. When the number of CSIs that can be measured (calculated) at the same time is exceeded, the CSI for which trigger is reported may be defined in advance by a specification or the like.

Here, the terminal apparatus 1 may transmit information used to indicate the number of CSIs that can be measured simultaneously to the base station apparatus 3. For example, the terminal device 1 may transmit an upper layer signal including information used to indicate the number of CSIs that can be simultaneously measured. Further, the terminal device 1 may transmit information used to indicate the number of CSIs that can be measured simultaneously as capability information. Here, information used to indicate the number of CSIs that can be simultaneously measured in one serving cell may be transmitted. Here, information used to indicate the number of CSIs that can be simultaneously measured in the terminal device 1 may be transmitted.

Here, the base station apparatus 3 may set (instruct) the number of CSI simultaneously measured by the terminal apparatus 1 (the number of CSI simultaneously measured by the terminal apparatus 1) to the terminal apparatus 1. For example, the base station device 3 may transmit an upper layer signal including information used to indicate the number of CSIs simultaneously measured by the terminal device 1. The terminal device 1 may calculate (calculate) the CSI based on the set number of CSIs measured simultaneously. The number of CSIs that are triggered but not reported by the base station device 3 and the terminal device 1 sending and receiving CSI calculated based on the number of CSIs set simultaneously by the base station device 3 and measured. It is possible to avoid a situation in which the sum of the number of newly triggered CSIs exceeds the number of CSIs that can be simultaneously measured in the terminal device 1.

Hereinafter, the configuration of the apparatus according to the present embodiment will be described.

FIG. 7 is a schematic block diagram showing the configuration of the terminal device 1 in the present embodiment. As shown in the figure, the terminal device 1 includes an upper layer processing unit 101, a control unit 103, a receiving unit 105, a transmitting unit 107, and a transmitting / receiving antenna unit 109. The upper layer processing unit 101 includes a radio resource control unit 1011, a scheduling information interpretation unit 1013, and a transmission power control unit 1015. The reception unit 105 includes a decoding unit 1051, a demodulation unit 1053, a demultiplexing unit 1055, a radio reception unit 1057, and a channel measurement unit 1059. The transmission unit 107 includes an encoding unit 1071, a modulation unit 1073, a multiplexing unit 1075, a radio transmission unit 1077, and an uplink reference signal generation unit 1079.

The upper layer processing unit 101 outputs uplink data (transport block) generated by a user operation or the like to the transmission unit 107. The upper layer processing unit 101 includes a medium access control (MAC: Medium Access Control) layer, a packet data integration protocol (Packet Data Convergence Protocol: PDCP) layer, a radio link control (Radio Link Control: RLC) layer, and radio resource control. Process the (Radio Resource Control: RRC) layer.

The radio resource control unit 1011 included in the upper layer processing unit 101 manages various setting information / parameters of the own device. The radio resource control unit 1011 sets various setting information / parameters based on the upper layer signal received from the base station apparatus 3. That is, the radio resource control unit 1011 sets various setting information / parameters based on information indicating various setting information / parameters received from the base station apparatus 3. Also, the radio resource control unit 1011 generates information arranged in each uplink channel and outputs the information to the transmission unit 107. The radio resource control unit 1011 is also referred to as a setting unit 1011.

Here, the scheduling information interpretation unit 1013 included in the upper layer processing unit 101 interprets the DCI format (scheduling information) received via the reception unit 105, and based on the interpretation result of the DCI format, the reception unit 105, Control information is generated to control the transmission unit 107 and output to the control unit 103.

The transmission power control unit 1015 included in the upper layer processing unit 101 controls transmission power for transmission on PUSCH and PUCCH based on various setting information / parameters, TPC commands, and the like managed by the radio resource control unit 1011. I do.

Further, the control unit 103 generates a control signal for controlling the receiving unit 105 and the transmitting unit 107 based on the control information from the higher layer processing unit 101. Control unit 103 outputs the generated control signal to receiving unit 105 and transmitting unit 107 to control receiving unit 105 and transmitting unit 107.

The receiving unit 105 also separates, demodulates, and decodes the received signal received from the base station apparatus 3 via the transmission / reception antenna unit 109 according to the control signal input from the control unit 103, and processes the decoded information in an upper layer process. Output to the unit 101.

Also, the radio reception unit 1057 converts a downlink signal received via the transmission / reception antenna unit 109 into a baseband signal by orthogonal demodulation (down-conversion: down covert), removes unnecessary frequency components, and reduces the signal level. The amplification level is controlled so as to be properly maintained, and quadrature demodulation is performed based on the in-phase component and the quadrature component of the received signal, and the quadrature demodulated analog signal is converted into a digital signal. The radio reception unit 1057 removes a portion corresponding to CP (Cyclic Prefix) from the converted digital signal, and performs a fast Fourier transform (FFT) on the signal from which the CP has been removed to obtain a frequency domain signal. Extract.

Also, the demultiplexing unit 1055 separates the extracted signal into PHICH, PDCCH, EPDCCH, PDSCH, and downlink reference signal. Further, demultiplexing section 1055 compensates the propagation path of PHICH, PDCCH, EPDCCH, and PDSCH from the estimated propagation path value input from channel measurement section 1059. Also, the demultiplexing unit 1055 outputs the demultiplexed downlink reference signal to the channel measurement unit 1059.

Also, the demodulating unit 1053 multiplies the PHICH by a corresponding code and synthesizes it, demodulates the synthesized signal using the BPSK (Binary Phase Shift Shift Keying) modulation method, and outputs it to the decoding unit 1051. Decoding section 1051 decodes the PHICH addressed to the own apparatus, and outputs the decoded HARQ indicator to higher layer processing section 101. Demodulation section 1053 performs QPSK modulation demodulation on PDCCH and / or EPDCCH, and outputs the result to decoding section 1051. Decoding section 1051 attempts to decode PDCCH and / or EPDCCH, and outputs the decoded downlink control information and the RNTI corresponding to the downlink control information to higher layer processing section 101 when the decoding is successful.

Also, the demodulation unit 1053 demodulates the modulation scheme notified by the downlink grant such as QPSK (Quadrature Phase Shift Keying), 16QAM (Quadrature Amplitude Modulation), 64QAM, and the like, and outputs the result to the decoding unit 1051 To do. The decoding unit 1051 performs decoding based on the information regarding the coding rate notified by the downlink control information, and outputs the decoded downlink data (transport block) to the higher layer processing unit 101.

Also, the channel measurement unit 1059 measures the downlink path loss and channel state from the downlink reference signal input from the demultiplexing unit 1055, and outputs the measured path loss and channel state to the upper layer processing unit 101. Also, channel measurement section 1059 calculates an estimated value of the downlink propagation path from the downlink reference signal, and outputs it to demultiplexing section 1055. The channel measurement unit 1059 performs channel measurement and / or interference measurement in order to calculate CQI (may be CSI).

Further, the transmission unit 107 generates an uplink reference signal according to the control signal input from the control unit 103, encodes and modulates uplink data (transport block) input from the higher layer processing unit 101, PUCCH, PUSCH, and the generated uplink reference signal are multiplexed and transmitted to base station apparatus 3 via transmission / reception antenna section 109. Moreover, the transmission part 107 transmits uplink control information.

Also, the encoding unit 1071 performs encoding such as convolutional encoding and block encoding on the uplink control information input from the higher layer processing unit 101. The encoding unit 1071 performs turbo encoding based on information used for PUSCH scheduling.

Also, the modulation unit 1073 uses the modulation scheme in which the encoded bits input from the encoding unit 1071 are notified by downlink control information such as BPSK, QPSK, 16QAM, and 64QAM, or a modulation scheme predetermined for each channel. Modulate. Modulation section 1073 determines the number of spatially multiplexed data sequences based on information used for PUSCH scheduling, and transmits the same PUSCH by using MIMO (Multiple Input Multiple Multiple Output) SM (Spatial Multiplexing). A plurality of uplink data are mapped to a plurality of sequences, and precoding is performed on the sequences.

The uplink reference signal generator 1079 also identifies a physical layer cell identifier (physicalphylayer cell identity: PCI, Cell ID, etc.) for identifying the base station apparatus 3, a bandwidth for arranging the uplink reference signal, and uplink A sequence determined by a predetermined rule (formula) is generated based on a cyclic shift notified by the link grant, a parameter value for generating a DMRS sequence, and the like. The multiplexing unit 1075 rearranges the PUSCH modulation symbols in parallel according to the control signal input from the control unit 103, and then performs a discrete Fourier transform (Discrete-Fourier-Transform: DFT). Also, multiplexing section 1075 multiplexes the PUCCH and PUSCH signals and the generated uplink reference signal for each transmission antenna port. That is, multiplexing section 1075 arranges the PUCCH and PUSCH signals and the generated uplink reference signal in the resource element for each transmission antenna port.

Also, the wireless transmission unit 1077 generates an SC-FDMA symbol by performing inverse fast Fourier transform (Inverse Fast Transform: IFFT) on the multiplexed signal, and adds a CP to the generated SC-FDMA symbol. Generates a band digital signal, converts the baseband digital signal to an analog signal, removes excess frequency components using a low-pass filter, upconverts to a carrier frequency, amplifies the power, and transmits and receives antennas It outputs to the part 109 and transmits.

FIG. 8 is a schematic block diagram showing the configuration of the base station apparatus 3 in the present embodiment. As shown in the figure, the base station apparatus 3 includes an upper layer processing unit 301, a control unit 303, a reception unit 305, a transmission unit 307, and a transmission / reception antenna unit 309. The upper layer processing unit 301 includes a radio resource control unit 3011, a scheduling unit 3013, and a transmission power control unit 3015. The reception unit 305 includes a decoding unit 3051, a demodulation unit 3053, a demultiplexing unit 3055, a wireless reception unit 3057, and a channel measurement unit 3059. The transmission unit 307 includes an encoding unit 3071, a modulation unit 3073, a multiplexing unit 3075, a radio transmission unit 3077, and a downlink reference signal generation unit 3079.

The upper layer processing unit 301 includes a medium access control (MAC: Medium Access Control) layer, a packet data integration protocol (Packet Data Convergence Protocol: PDCP) layer, a radio link control (Radio Link Control: RLC) layer, a radio resource control (Radio). Resource (Control: RRC) layer processing. Further, upper layer processing section 301 generates control information for controlling receiving section 305 and transmitting section 307 and outputs the control information to control section 303.

Further, the radio resource control unit 3011 included in the higher layer processing unit 301 generates downlink data (transport block), system information, RRC message, MAC CE (Control element), and the like arranged in the downlink PDSCH, Alternatively, it is acquired from the upper node and output to the transmission unit 307. The radio resource control unit 3011 manages various setting information / parameters of each terminal device 1. The radio resource control unit 3011 may set various setting information / parameters for each terminal apparatus 1 via higher layer signals. That is, the radio resource control unit 1011 transmits / broadcasts information indicating various setting information / parameters. The radio resource control unit 3011 is also referred to as a setting unit 3011.

Further, the scheduling unit 3013 included in the higher layer processing unit 301 assigns physical channels (PDSCH and PUSCH) based on the received channel state information, the channel estimation value input from the channel measurement unit 3059, the channel quality, and the like. And the coding rate and modulation scheme and transmission power of subframes, physical channels (PDSCH and PUSCH), etc. Based on the scheduling result, the scheduling unit 3013 generates control information (for example, DCI format) for controlling the reception unit 305 and the transmission unit 307 and outputs the control information to the control unit 303. The scheduling unit 3013 further determines timing for performing transmission processing and reception processing.

In addition, the transmission power control unit 3015 included in the higher layer processing unit 301 responds to transmission on the PUSCH and PUCCH by the terminal device 1 via various setting information / parameters, TPC commands, and the like managed by the radio resource control unit 3011 Control transmission power.

Further, the control unit 303 generates a control signal for controlling the reception unit 305 and the transmission unit 307 based on the control information from the higher layer processing unit 301. The control unit 303 outputs the generated control signal to the reception unit 305 and the transmission unit 307 and controls the reception unit 305 and the transmission unit 307.

The receiving unit 305 separates, demodulates, and decodes the received signal received from the terminal device 1 via the transmission / reception antenna unit 309 according to the control signal input from the control unit 303, and the decoded information is the upper layer processing unit 301. Output to. The radio reception unit 3057 converts the uplink signal received via the transmission / reception antenna unit 309 into a baseband signal by orthogonal demodulation (down-conversion: down covert), removes unnecessary frequency components, and has a signal level of The amplification level is controlled so as to be appropriately maintained, and the quadrature demodulation is performed based on the in-phase component and the quadrature component of the received signal, and the analog signal subjected to the quadrature demodulation is converted into a digital signal. The receiving unit 305 receives uplink control information.

Further, the wireless reception unit 3057 removes a portion corresponding to CP (Cyclic Prefix) from the converted digital signal. The radio reception unit 3057 performs fast Fourier transform (FFT) on the signal from which the CP is removed, extracts a frequency domain signal, and outputs the signal to the demultiplexing unit 3055.

Also, the demultiplexing unit 1055 separates the signal input from the radio reception unit 3057 into signals such as PUCCH, PUSCH, and uplink reference signal. Note that this separation is performed based on radio resource allocation information included in the uplink grant that is determined in advance by the radio resource control unit 3011 by the base station device 3 and notified to each terminal device 1. In addition, demultiplexing section 3055 compensates for the propagation paths of PUCCH and PUSCH from the propagation path estimation value input from channel measurement section 3059. Further, the demultiplexing unit 3055 outputs the separated uplink reference signal to the channel measurement unit 3059.

Further, the demodulation unit 3053 performs inverse discrete Fourier transform (Inverse Discrete Fourier Transform: IDFT) on the PUSCH to obtain modulation symbols, and BPSK (Binary Phase Shift Keying), QPSK, QPSK, and PUSCH modulation symbols respectively. The received signal is demodulated using a predetermined modulation method such as 16QAM, 64QAM, or the like, or the modulation method notified by the own device in advance to each terminal device 1 using the uplink grant. The demodulator 3053 uses the MIMO SM based on the number of spatially multiplexed sequences notified in advance to each terminal device 1 using an uplink grant and information indicating precoding performed on the sequences. A plurality of uplink data modulation symbols transmitted on the PUSCH are separated.

Also, the decoding unit 3051 encodes the demodulated PUCCH and PUSCH encoded bits in a predetermined encoding scheme, or a code that the device itself notifies the terminal device 1 in advance with an uplink grant. The decoding is performed at the conversion rate, and the decoded uplink data and the uplink control information are output to the upper layer processing unit 101. When PUSCH is retransmitted, decoding section 3051 performs decoding using the encoded bits held in the HARQ buffer input from higher layer processing section 301 and the demodulated encoded bits. Channel measurement section 309 measures an estimated channel value, channel quality, and the like from the uplink reference signal input from demultiplexing section 3055 and outputs the result to demultiplexing section 3055 and higher layer processing section 301.

Further, the transmission unit 307 generates a downlink reference signal according to the control signal input from the control unit 303, and encodes the HARQ indicator, downlink control information, and downlink data input from the higher layer processing unit 301. Then, PHICH, PDCCH, EPDCCH, PDSCH, and downlink reference signal are multiplexed, and the signal is transmitted to the terminal device 1 via the transmission / reception antenna unit 309.

Also, the encoding unit 3071 encodes the HARQ indicator, downlink control information, and downlink data input from the higher layer processing unit 301 with predetermined encoding such as block encoding, convolutional encoding, and turbo encoding. Encoding is performed using the method, or encoding is performed using the encoding method determined by the radio resource control unit 3011. The modulation unit 3073 modulates the coded bits input from the coding unit 3071 with a modulation scheme determined in advance by the radio resource control unit 3011 such as BPSK, QPSK, 16QAM, and 64QAM.

Also, the downlink reference signal generation unit 3079 obtains a sequence known by the terminal device 1 as a downlink reference signal, which is obtained by a predetermined rule based on a physical layer cell identifier (PCI) for identifying the base station device 3 or the like. Generate as The multiplexing unit 3075 multiplexes the modulated modulation symbol of each channel and the generated downlink reference signal. That is, multiplexing section 3075 arranges the modulated modulation symbol of each channel and the generated downlink reference signal in the resource element.

Also, the wireless transmission unit 3077 performs an inverse fast Fourier transform (Inverse Fast Fourier Transform: IFFT) on the multiplexed modulation symbol or the like to generate an OFDM symbol, adds a CP to the generated OFDM symbol, and adds baseband digital A signal is generated, a baseband digital signal is converted into an analog signal, an extra frequency component is removed by a low-pass filter, up-converted to a carrier frequency (up 、 convert), power amplified, and output to a transmission / reception antenna unit 309 To send.

More specifically, the terminal device 1 in the present embodiment receives an upper layer signal including first information used for setting a plurality of PUCCH cell groups, and receives one or a plurality of serving cell sets. Receiving the upper layer signal including second information used for setting, and receiving the upper layer signal including third information used to set one or more sets of serving cells. When more than one serving cell is set in one PUCCH cell group to which a receiving cell 105 and a serving cell scheduled for PUSCH using a DCI format among the plurality of PUCCH cell groups belong, Based on the value of the 2-bit CSI request field and the second information, When a periodic CSI report is executed and more than five serving cells are set in one PUCCH cell group to which a serving cell scheduled for PUSCH using the DCI format belongs among the plurality of PUCCH cell groups. And a transmission unit 107 that executes an aperiodic CSI report based on the value of the 3-bit CSI request field and the third information.

Here, when one serving cell is set in one PUCCH cell group to which the serving cell scheduled for PUSCH using the DCI format belongs, among the plurality of PUCCH cell groups, Based on the value of the 1-bit CSI request field, an aperiodic CSI report for the one serving cell is executed.

Also, the base station apparatus 3 in the present embodiment transmits an upper layer signal including the first information used for setting a plurality of PUCCH cell groups, and sets one or a plurality of serving cell sets. Transmitting the upper layer signal including the second information used for the transmission, and transmitting the upper layer signal including the third information used for setting one or more serving cell sets. Unit 307 and one PUCCH cell group to which a serving cell scheduled for PUSCH using a DCI format among the plurality of PUCCH cell groups belongs is set to more than one serving cell. Based on the value of the CSI request field and the second information, In a case where more than five serving cells are set in one PUCCH cell group to which a serving cell scheduled for PUSCH using a DCI format belongs among the plurality of PUCCH cell groups. And a receiving unit 305 that receives an aperiodic CSI report based on the value of the 3-bit CSI request field and the third information.

Here, when one serving cell is set in one PUCCH cell group to which the serving cell scheduled for PUSCH using the DCI format belongs, among the plurality of PUCCH cell groups, An aperiodic CSI report for the one serving cell is received based on the value of the 1-bit CSI request field.

In addition, the terminal device 1 according to the present embodiment includes a receiving unit 105 that receives a DCI format 0 including information used for instructing a CSI request, an MCS index, and information used for allocating a physical resource block. The MCS index is 29, the CSI request field is 3 bits, the CSI request field is set to trigger an aperiodic CSI report for one serving cell, and the number of physical resource blocks is equal to 4. Or, when the number is less than 4, only uplink control information is transmitted using PUSCH, the MCS index is 29, the CSI request field is 3 bits, and there is one CSI request field. If the aperiodic CSI report for more serving cells is set to trigger and the number of physical resource blocks is the same as or less than 20, then only uplink control information is transmitted using PUSCH; If the MCS index is 29, the CSI request field is 3 bits and an aperiodic CSI report for more than 5 serving cells is set to trigger, regardless of the number of physical resource blocks , And a transmission unit 107 that transmits only uplink control information using PUSCH.

Here, the receiving unit 105 includes a DCI including information used for indicating a CSI request, an MCS index, information used for allocating a physical resource block, and information used for specifying a transmission layer. When the format 4 is received, the transmission unit 107 validates one transport block, the MCS index for the validated transport block is 29, the number of transmission layers is 1, and the CSI request When the field is 3 bits and the aperiodic CSI report for one serving cell is set to trigger, and the number of physical resource blocks is 4 or less, only uplink control information is transmitted using PUSCH. Has one transport block The MCS index for the enabled transport block is 29, the number of transmission layers is 1, the CSI request field is 3 bits, and the aperiodic CSI report for the serving cell is triggered by more than one If the number of physical resource blocks is 20 or less, only uplink control information is transmitted using PUSCH, one transport block is validated, and the validated transport block If the MCS index for is 29, the number of transmission layers is 1, the CSI request field is 3 bits, and the aperiodic CSI report for the serving cell is set to trigger more than 5 Physical resource block Regardless of the number, and transmits only the uplink control information using the PUSCH.

In addition, the base station apparatus 3 in the present embodiment transmits a DCI format 0 including information used for indicating a CSI request, an MCS index, and information used for allocating a physical resource block. The MCS index is 29, the CSI request field is 3 bits, the CSI request field is set to trigger an aperiodic CSI report for one serving cell, and the number of physical resource blocks is 4. When the same or less than 4, only uplink control information is received using PUSCH, the MCS index is 29, the CSI request field is 3 bits, and the CSI request field is 1 If the aperiodic CSI report for more serving cells is set to trigger and if the number of physical resource blocks is equal to or less than 20, then only uplink control information is received using PUSCH; If the MCS index is 29, the CSI request field is 3 bits and an aperiodic CSI report for more than 5 serving cells is set to trigger, regardless of the number of physical resource blocks , And receiving section 305 that receives only uplink control information using PUSCH.

Here, the transmission unit 307 includes a DCI including information used for indicating a CSI request, an MCS index, information used for allocating a physical resource block, and information used for specifying a transmission layer. Format 4 is transmitted, and the receiving unit 305 has one transport block validated, the MCS index for the validated transport block is 29, the number of transmission layers is 1, and the CSI request When the field is 3 bits and the aperiodic CSI report for one serving cell is set to trigger, and the number of physical resource blocks is 4 or less, only uplink control information is received using PUSCH, Has one transport block The MCS index for the enabled transport block is 29, the number of transmission layers is 1, the CSI request field is 3 bits, and the aperiodic CSI report for the serving cell is triggered by more than one When the number of physical resource blocks is 20 or less, only uplink control information is received using PUSCH, one transport block is validated, and the validated transport block If the MCS index for is 29, the number of transmission layers is 1, the CSI request field is 3 bits and the aperiodic CSI report for the serving cell is set to trigger more than 5, the PUSCH Use the To receive only a click control information.

Also, the terminal device 1 in the present embodiment receives information for setting a primary cell used for HARQ-ACK transmission in the first PUCCH cell group, and transmits HARQ-ACK in the second PUCCH cell group. A receiving unit 105 that receives information for setting a first secondary cell used in the first cell, and a transmission on the PDSCH only in the primary cell in the first PUCCH cell group. HARQ-ACK is transmitted using the PUCCH resource and the first PUCCH format of the first PUCCH cell group in response to transmission on the PDSCH in the second secondary cell in the first PUCCH cell group. PUCCH litho And the second PUCCH format to transmit HARQ-ACK, and for transmission on the PDSCH only in the first secondary cell in the second PUCCH cell group, in the first secondary cell, HARQ-ACK is transmitted using the second PUCCH resource and the second PUCCH format, and the transmission on the PDSCH in the third secondary cell in the second PUCCH cell group is performed with respect to the first secondary cell. And a transmission unit 107 that transmits HARQ-ACK using the second PUCCH resource and the second PUCCH format.

Also, the base station apparatus 3 in the present embodiment transmits information for setting a primary cell used for HARQ-ACK transmission in the first PUCCH cell group, and HARQ-ACK in the second PUCCH cell group. A transmission unit 307 that transmits information for setting a first secondary cell used for transmission, and transmission on the PDSCH only in the primary cell in the first PUCCH cell group, in the primary cell, The HARQ-ACK is received using one PUCCH resource and the first PUCCH format, and in the primary cell, second transmission is performed on the PDSCH in the second secondary cell in the first PUCCH cell group. PUCCH re And the second PUCCH format, the HARQ-ACK is received, and the PDSCH transmission in only the first secondary cell in the second PUCCH cell group is performed in the first secondary cell. , Receiving HARQ-ACK using the second PUCCH resource and the second PUCCH format, and for the transmission on the PDSCH in the third secondary cell in the second PUCCH cell group, the first secondary The cell includes a receiving unit 305 that receives HARQ-ACK using the second PUCCH resource and the second PUCCH format.

Also, the terminal device 1 in the present embodiment, when there is a collision between HARQ-ACK transmission in a certain serving cell and a periodic CSI report in the certain serving cell, in one subframe not involving PUSCH, the HARQ-ACK The periodic CSI report multiplexed with the PUCCH in the certain serving cell is transmitted on the PUCCH, and in one subframe not accompanied by the PUSCH, the HARQ-ACK transmission in the certain serving cell and the periodic in a serving cell different from the certain serving cell are transmitted. When there is a collision with a CSI report, the HARQ-ACK is transmitted on the PUCCH in the certain serving cell, and the periodic CSI report is transmitted to the certain serving cell. A transmitting unit 307 to transmit at PUCCH in different serving cell and.

Also, the terminal device 1 in the present embodiment uses the first information used to allow transmission of the HARQ-ACK and the periodic CSI report in the certain serving cell in one subframe not accompanied by the PUSCH. And used in order to allow transmission of the HARQ-ACK in the serving cell and the periodic CSI report in a serving cell different from the serving cell in one subframe without the PUSCH. A receiving unit 305 for receiving the information.

Also, the terminal device 1 in the present embodiment, when there is a collision between HARQ-ACK transmission in a certain serving cell and a periodic CSI report in the certain serving cell, in one subframe not involving PUSCH, the HARQ-ACK The periodic CSI report multiplexed with the PUCCH in the certain serving cell is transmitted on the PUCCH, and in one subframe not accompanied by the PUSCH, the HARQ-ACK transmission in the certain serving cell and the periodic in a serving cell different from the certain serving cell are transmitted. Transmitter 3 that transmits the HARQ-ACK on the PUCCH in the serving cell and drops the periodic CSI report when there is a collision with a CSI report Equipped with a 7.

Also, the base station apparatus 3 in the present embodiment, in one subframe not involving PUSCH, when the HARQ-ACK transmission in a certain serving cell collides with the periodic CSI report in the certain serving cell, the HARQ- The periodic CSI report multiplexed with ACK is received on the PUCCH in the certain serving cell, and in one subframe without PUSCH, transmission of HARQ-ACK in the certain serving cell and period in a serving cell different from the certain serving cell are performed. When there is a collision with a dick CSI report, the HARQ-ACK is received on the PUCCH in the certain serving cell, and the periodic CSI report is received in the certain serving cell. Le a receiving portion 305 for receiving in PUCCH in different serving cell and.

Also, the base station apparatus 3 in the present embodiment uses the first used for permitting the transmission of the HARQ-ACK and the periodic CSI report in the certain serving cell in one subframe not involving the PUSCH. Used to allow the transmission of the HARQ-ACK in the serving cell and the periodic CSI report in a serving cell different from the serving cell in one subframe without the PUSCH. A transmission unit 307 for transmitting the second information.

Also, the base station apparatus 3 in the present embodiment, in one subframe not involving PUSCH, when the HARQ-ACK transmission in a certain serving cell collides with the periodic CSI report in the certain serving cell, the HARQ- The periodic CSI report multiplexed with ACK is received on the PUCCH in the certain serving cell, and in one subframe without PUSCH, transmission of HARQ-ACK in the certain serving cell and period in a serving cell different from the certain serving cell are performed. When a collision with a dick CSI report occurs, the HARQ-ACK is received on the PUCCH in the certain serving cell, and the periodic CSI report is assumed to have been dropped. A receiving unit 305 for.

Thereby, the terminal device can efficiently execute processing related to transmission power.

A program that operates in the base station device 3 and the terminal device 1 related to the present invention is a program that controls a CPU (Central Processing Unit) or the like (a computer is functioned) so as to realize the functions of the above-described embodiments related to the present invention Program). Information handled by these devices is temporarily stored in RAM (Random Access Memory) during processing, and then stored in various ROMs such as Flash ROM (Read Only Memory) and HDD (Hard Disk Drive). Reading, correction, and writing are performed by the CPU as necessary.

In addition, you may make it implement | achieve the terminal device 1 in the embodiment mentioned above, and a part of base station apparatus 3 with a computer. In that case, the program for realizing the control function may be recorded on a computer-readable recording medium, and the program recorded on the recording medium may be read by the computer system and executed.

Note that the “computer system” here is a computer system built in the terminal device 1 or the base station device 3 and includes hardware such as an OS and peripheral devices. The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM or a CD-ROM, and a hard disk incorporated in a computer system.

Furthermore, the “computer-readable recording medium” is a medium that dynamically holds a program for a short time, such as a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line, In such a case, a volatile memory inside a computer system serving as a server or a client may be included and a program that holds a program for a certain period of time. The program may be a program for realizing a part of the functions described above, and may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system.

Also, the base station device 3 in the above-described embodiment can be realized as an aggregate (device group) composed of a plurality of devices. Each of the devices constituting the device group may include a part or all of each function or each functional block of the base station device 3 according to the above-described embodiment. The device group only needs to have one function or each function block of the base station device 3. The terminal device 1 according to the above-described embodiment can also communicate with the base station device as an aggregate.

Further, the base station apparatus 3 in the above-described embodiment may be EUTRAN (Evolved Universal Terrestrial Radio Access Network). In addition, the base station device 3 in the above-described embodiment may have a part or all of the functions of the upper node for the eNodeB.

In addition, a part or all of the terminal device 1 and the base station device 3 in the above-described embodiment may be realized as an LSI that is typically an integrated circuit, or may be realized as a chip set. Each functional block of the terminal device 1 and the base station device 3 may be individually chipped, or a part or all of them may be integrated into a chip. Further, the method of circuit integration is not limited to LSI, and may be realized by a dedicated circuit or a general-purpose processor. In addition, when an integrated circuit technology that replaces LSI appears due to progress in semiconductor technology, an integrated circuit based on the technology can also be used.

In the above-described embodiment, the terminal device is described as an example of the communication device. However, the present invention is not limited to this, and the stationary or non-movable electronic device installed indoors or outdoors, For example, the present invention can also be applied to terminal devices or communication devices such as AV equipment, kitchen equipment, cleaning / washing equipment, air conditioning equipment, office equipment, vending machines, and other daily life equipment.

As described above, the embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes design changes and the like without departing from the gist of the present invention. The present invention can be modified in various ways within the scope of the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments are also included in the technical scope of the present invention. It is. Moreover, it is the element described in each said embodiment, and the structure which substituted the element which has the same effect is also contained.

The present invention can be applied to mobile phones, personal computers, tablet computers, and the like.

1 (1A, 1B, 1C) Terminal apparatus 3 Base station apparatus 101 Upper layer processing section 103 Control section 105 Reception section 107 Transmission section 301 Upper layer processing section 303 Control section 305 Reception section 307 Transmission section 1011 Radio resource control section 1013 Scheduling information Interpretation unit 1015 Transmission power control unit 3011 Radio resource control unit 3013 Scheduling unit 3015 Transmission power control unit

Claims

A terminal device,
First information used to indicate to which serving cell the aperiodic CSI report is triggered when the aperiodic CSI (Channel State Information) report is triggered by the value of the 2-bit CSI request field Receive
A receiving unit that receives second information used to indicate to which serving cell the aperiodic CSI report is triggered when the aperiodic CSI report is triggered by the value of the 3-bit CSI request field When,
When an aperiodic CSI report is triggered by the value of the 2-bit CSI request field included in downlink control information used for scheduling of a physical uplink shared channel (PUSCH), the first information and the Based on the value of the 2-bit CSI request field, execute an aperiodic CSI report,
When an aperiodic CSI report is triggered by the value of the 3-bit CSI request field included in the downlink control information, an application is performed based on the second information and the value of the 3-bit CSI request field. A transmission unit for executing a periodic CSI report,
When more than 5 downlink cells are set in the terminal apparatus and the downlink control information is mapped in a UE specific search space (User Equipment-specific search space) provided by C-RNTI Includes the 2-bit CSI request field in the downlink control information,
When more than 5 downlink cells are set in the terminal apparatus and the downlink control information is mapped in the UE specific search space given by C-RNTI, the 3 bits are included in the downlink control information. A terminal device including a CSI request field.
The downlink control information includes a field used for indicating a value of an MCS (Modulation and Coding scheme) index, and a field used for indicating the number of allocated physical resource blocks,
When the value of the MCS index is 29 and the downlink control information includes the 3-bit CSI request field, an aperiodic value given by the value of the second information and the 3-bit CSI request field The terminal apparatus according to claim 1, wherein only uplink control information is transmitted using the PUSCH based on the number of serving cells for which a CSI report is triggered and the number of allocated physical resource blocks.
A base station device,
First information used to indicate to which serving cell the aperiodic CSI report is triggered when the aperiodic CSI (Channel State Information) report is triggered by the value of the 2-bit CSI request field Send
Transmitter for transmitting second information used to indicate to which serving cell the aperiodic CSI report is triggered when the aperiodic CSI report is triggered by the value of the 3-bit CSI request field When,
When an aperiodic CSI report is triggered by the value of the 2-bit CSI request field included in downlink control information used for scheduling of a physical uplink shared channel (PUSCH), the first information and the Receive an aperiodic CSI report based on the value of the 2-bit CSI request field;
When an aperiodic CSI report is triggered by the value of the 3-bit CSI request field included in the downlink control information, an application is performed based on the second information and the value of the 3-bit CSI request field. A receiving unit for receiving a periodic CSI report,
When more than 5 downlink cells are set in the terminal apparatus and the downlink control information is mapped in a UE specific search space (User Equipment-specific search space) provided by C-RNTI Includes the 2-bit CSI request field in the downlink control information,
When more than 5 downlink cells are set in the terminal apparatus and the downlink control information is mapped in the UE specific search space given by C-RNTI, the 3 bits are included in the downlink control information. The base station apparatus includes a CSI request field.
The downlink control information includes a field used for indicating a value of an MCS (Modulation and Coding scheme) index, and a field used for indicating the number of allocated physical resource blocks,
When the value of the MCS index is 29 and the downlink control information includes the 3-bit CSI request field, an aperiodic value given by the value of the second information and the 3-bit CSI request field The base station apparatus according to claim 3, wherein only uplink control information is transmitted using the PUSCH based on the number of serving cells for which a CSI report is triggered and the number of allocated physical resource blocks.
A communication method for a terminal device,
First information used to indicate to which serving cell the aperiodic CSI report is triggered when the aperiodic CSI (Channel State Information) report is triggered by the value of the 2-bit CSI request field Receive
Receiving a second information used to indicate to which serving cell an aperiodic CSI report is triggered when the aperiodic CSI report is triggered by the value of the 3-bit CSI request field;
When an aperiodic CSI report is triggered by the value of the 2-bit CSI request field included in downlink control information used for scheduling of a physical uplink shared channel (PUSCH), the first information and the Based on the value of the 2-bit CSI request field, execute an aperiodic CSI report,
When an aperiodic CSI report is triggered by the value of the 3-bit CSI request field included in the downlink control information, an application is performed based on the second information and the value of the 3-bit CSI request field. Run periodic CSI report,
When more than 5 downlink cells are set in the terminal apparatus and the downlink control information is mapped in a UE specific search space (User Equipment-specific search space) provided by C-RNTI Includes the 2-bit CSI request field in the downlink control information,
When more than 5 downlink cells are set in the terminal apparatus and the downlink control information is mapped in the UE specific search space given by C-RNTI, the 3 bits are included in the downlink control information. A communication method including a CSI request field.
A communication method of a base station apparatus,
First information used to indicate to which serving cell the aperiodic CSI report is triggered when the aperiodic CSI (Channel State Information) report is triggered by the value of the 2-bit CSI request field Send
If the aperiodic CSI report is triggered by the value of the 3-bit CSI request field, send second information used to indicate which serving cell the aperiodic CSI report is triggered;
When an aperiodic CSI report is triggered by the value of the 2-bit CSI request field included in downlink control information used for scheduling of a physical uplink shared channel (PUSCH), the first information and the Receive an aperiodic CSI report based on the value of the 2-bit CSI request field;
When an aperiodic CSI report is triggered by the value of the 3-bit CSI request field included in the downlink control information, an application is performed based on the second information and the value of the 3-bit CSI request field. Receive periodic CSI report,
When more than 5 downlink cells are set in the terminal apparatus and the downlink control information is mapped in a UE specific search space (User Equipment-specific search space) provided by C-RNTI Includes the 2-bit CSI request field in the downlink control information,
When more than 5 downlink cells are set in the terminal apparatus and the downlink control information is mapped in the UE specific search space given by C-RNTI, the 3 bits are included in the downlink control information. A communication method including a CSI request field.
An integrated circuit mounted on a terminal device,
First information used to indicate to which serving cell the aperiodic CSI report is triggered when the aperiodic CSI (Channel State Information) report is triggered by the value of the 2-bit CSI request field Receive
A function of receiving second information used to indicate to which serving cell the aperiodic CSI report is triggered when the aperiodic CSI report is triggered by the value of the 3-bit CSI request field; ,
When an aperiodic CSI report is triggered by the value of the 2-bit CSI request field included in downlink control information used for scheduling of a physical uplink shared channel (PUSCH), the first information and the Based on the value of the 2-bit CSI request field, execute an aperiodic CSI report,
When an aperiodic CSI report is triggered by the value of the 3-bit CSI request field included in the downlink control information, an application is performed based on the second information and the value of the 3-bit CSI request field. A function of executing a periodic CSI report;
When more than 5 downlink cells are set in the terminal apparatus and the downlink control information is mapped in a UE specific search space (User Equipment-specific search space) provided by C-RNTI Includes the 2-bit CSI request field in the downlink control information,
When more than 5 downlink cells are set in the terminal apparatus and the downlink control information is mapped in the UE specific search space given by C-RNTI, the 3 bits are included in the downlink control information. An integrated circuit including a CSI request field.
An integrated circuit mounted on a base station device,
First information used to indicate to which serving cell the aperiodic CSI report is triggered when the aperiodic CSI (Channel State Information) report is triggered by the value of the 2-bit CSI request field Send
A function of transmitting second information used to indicate to which serving cell the aperiodic CSI report is triggered when the aperiodic CSI report is triggered by the value of the 3-bit CSI request field; ,
When an aperiodic CSI report is triggered by the value of the 2-bit CSI request field included in downlink control information used for scheduling of a physical uplink shared channel (PUSCH), the first information and the Receive an aperiodic CSI report based on the value of the 2-bit CSI request field;
When an aperiodic CSI report is triggered by the value of the 3-bit CSI request field included in the downlink control information, an application is performed based on the second information and the value of the 3-bit CSI request field. A function of receiving a periodic CSI report;
When more than 5 downlink cells are set in the terminal apparatus and the downlink control information is mapped in a UE specific search space (User Equipment-specific search space) provided by C-RNTI Includes the 2-bit CSI request field in the downlink control information,
When more than 5 downlink cells are set in the terminal apparatus and the downlink control information is mapped in the UE specific search space given by C-RNTI, the 3 bits are included in the downlink control information. An integrated circuit including a CSI request field.